document.write( "Question 392551: Solve. Use two variables and two equations.\r
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\n" ); document.write( "\n" ); document.write( "1.The sum of two numbers is 35. One number is 4 times the other. Find the numbers.\r
\n" ); document.write( "\n" ); document.write( "2.One number is 5 more than another number. The sum of the two numbers is 43. Find the numbers.\r
\n" ); document.write( "\n" ); document.write( "3.One number us 5 times another number. It is also 3 more than twice the other number. Find the numbers.\r
\n" ); document.write( "\n" ); document.write( "4.Ellen is 5 years older than Trudy. Their ages total 39. How old is each person?\r
\n" ); document.write( "\n" ); document.write( "5. In a game of bowling, Buds score was 12 more than Jans. Their combined score was 328. Find their scores.
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Algebra.Com's Answer #278619 by haileytucki(390)\"\" \"About 
You can put this solution on YOUR website!
x+y=35_x=4y\r
\n" ); document.write( "\n" ); document.write( "Since y does not contain the variable to solve for, move it to the right-hand side of the equation by subtracting y from both sides.
\n" ); document.write( "x=-y+35_x=4y\r
\n" ); document.write( "\n" ); document.write( "Replace all occurrences of x with the solution found by solving the last equation for x. In this case, the value substituted is -y+35.
\n" ); document.write( "x=-y+35_(-y+35)=4y\r
\n" ); document.write( "\n" ); document.write( "Remove the parentheses around the expression -y+35.
\n" ); document.write( "x=-y+35_-y+35=4y\r
\n" ); document.write( "\n" ); document.write( "Since 4y contains the variable to solve for, move it to the left-hand side of the equation by subtracting 4y from both sides.
\n" ); document.write( "x=-y+35_-y+35-4y=0\r
\n" ); document.write( "\n" ); document.write( "Since -y and -4y are like terms, subtract 4y from -y to get -5y.
\n" ); document.write( "x=-y+35_-5y+35=0\r
\n" ); document.write( "\n" ); document.write( "Since 35 does not contain the variable to solve for, move it to the right-hand side of the equation by subtracting 35 from both sides.
\n" ); document.write( "x=-y+35_-5y=-35\r
\n" ); document.write( "\n" ); document.write( "Divide each term in the equation by -5.
\n" ); document.write( "x=-y+35_-(5y)/(-5)=-(35)/(-5)\r
\n" ); document.write( "\n" ); document.write( "Simplify the left-hand side of the equation by canceling the common factors.
\n" ); document.write( "x=-y+35_y=-(35)/(-5)\r
\n" ); document.write( "\n" ); document.write( "Simplify the right-hand side of the equation by simplifying each term.
\n" ); document.write( "x=-y+35_y=7\r
\n" ); document.write( "\n" ); document.write( "Replace all occurrences of y with the solution found by solving the last equation for y. In this case, the value substituted is 7.
\n" ); document.write( "x=-(7)+35_y=7\r
\n" ); document.write( "\n" ); document.write( "Multiply -1 by the 7 inside the parentheses.
\n" ); document.write( "x=-7+35_y=7\r
\n" ); document.write( "\n" ); document.write( "Add 35 to -7 to get 28.
\n" ); document.write( "x=28_y=7\r
\n" ); document.write( "\n" ); document.write( "This is the solution to the system of equations.
\n" ); document.write( "x=28_y=7\r
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\n" ); document.write( "\n" ); document.write( "x+y=43_x=5+y\r
\n" ); document.write( "\n" ); document.write( "Since y does not contain the variable to solve for, move it to the right-hand side of the equation by subtracting y from both sides.
\n" ); document.write( "x=-y+43_x=y+5\r
\n" ); document.write( "\n" ); document.write( "Replace all occurrences of x with the solution found by solving the last equation for x. In this case, the value substituted is -y+43.
\n" ); document.write( "x=-y+43_(-y+43)=y+5\r
\n" ); document.write( "\n" ); document.write( "Remove the parentheses around the expression -y+43.
\n" ); document.write( "x=-y+43_-y+43=y+5\r
\n" ); document.write( "\n" ); document.write( "Since y contains the variable to solve for, move it to the left-hand side of the equation by subtracting y from both sides.
\n" ); document.write( "x=-y+43_-y+43-y=5\r
\n" ); document.write( "\n" ); document.write( "Since -y and -y are like terms, subtract y from -y to get -2y.
\n" ); document.write( "x=-y+43_-2y+43=5\r
\n" ); document.write( "\n" ); document.write( "Since 43 does not contain the variable to solve for, move it to the right-hand side of the equation by subtracting 43 from both sides.
\n" ); document.write( "x=-y+43_-2y=-43+5\r
\n" ); document.write( "\n" ); document.write( "Add 5 to -43 to get -38.
\n" ); document.write( "x=-y+43_-2y=-38\r
\n" ); document.write( "\n" ); document.write( "Divide each term in the equation by -2.
\n" ); document.write( "x=-y+43_-(2y)/(-2)=-(38)/(-2)\r
\n" ); document.write( "\n" ); document.write( "Simplify the left-hand side of the equation by canceling the common factors.
\n" ); document.write( "x=-y+43_y=-(38)/(-2)\r
\n" ); document.write( "\n" ); document.write( "Simplify the right-hand side of the equation by simplifying each term.
\n" ); document.write( "x=-y+43_y=19\r
\n" ); document.write( "\n" ); document.write( "Replace all occurrences of y with the solution found by solving the last equation for y. In this case, the value substituted is 19.
\n" ); document.write( "x=-(19)+43_y=19\r
\n" ); document.write( "\n" ); document.write( "Multiply -1 by the 19 inside the parentheses.
\n" ); document.write( "x=-19+43_y=19\r
\n" ); document.write( "\n" ); document.write( "Add 43 to -19 to get 24.
\n" ); document.write( "x=24_y=19\r
\n" ); document.write( "\n" ); document.write( "This is the solution to the system of equations.
\n" ); document.write( "x=24_y=19\r
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\n" ); document.write( "\n" ); document.write( "y=5x_y=2x+3\r
\n" ); document.write( "\n" ); document.write( "Replace all occurrences of y with the solution found by solving the last equation for y. In this case, the value substituted is 5x.
\n" ); document.write( "y=5x_(5x)=2x+3\r
\n" ); document.write( "\n" ); document.write( "Remove the parentheses around the expression 5x.
\n" ); document.write( "y=5x_5x=2x+3\r
\n" ); document.write( "\n" ); document.write( "Since 2x contains the variable to solve for, move it to the left-hand side of the equation by subtracting 2x from both sides.
\n" ); document.write( "y=5x_5x-2x=3\r
\n" ); document.write( "\n" ); document.write( "Since 5x and -2x are like terms, add -2x to 5x to get 3x.
\n" ); document.write( "y=5x_3x=3\r
\n" ); document.write( "\n" ); document.write( "Divide each term in the equation by 3.
\n" ); document.write( "y=5x_(3x)/(3)=(3)/(3)\r
\n" ); document.write( "\n" ); document.write( "Simplify the left-hand side of the equation by canceling the common factors.
\n" ); document.write( "y=5x_x=(3)/(3)\r
\n" ); document.write( "\n" ); document.write( "Simplify the right-hand side of the equation by simplifying each term.
\n" ); document.write( "y=5x_x=1\r
\n" ); document.write( "\n" ); document.write( "Replace all occurrences of x with the solution found by solving the last equation for x. In this case, the value substituted is 1.
\n" ); document.write( "y=5(1)_x=1\r
\n" ); document.write( "\n" ); document.write( "Multiply 5 by each term inside the parentheses.
\n" ); document.write( "y=5_x=1\r
\n" ); document.write( "\n" ); document.write( "This is the solution to the system of equations.
\n" ); document.write( "y=5_x=1\r
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\n" ); document.write( "\n" ); document.write( "x+y=39_x=y+5\r
\n" ); document.write( "\n" ); document.write( "Since y does not contain the variable to solve for, move it to the right-hand side of the equation by subtracting y from both sides.
\n" ); document.write( "x=-y+39_x=y+5\r
\n" ); document.write( "\n" ); document.write( "Replace all occurrences of x with the solution found by solving the last equation for x. In this case, the value substituted is -y+39.
\n" ); document.write( "x=-y+39_(-y+39)=y+5\r
\n" ); document.write( "\n" ); document.write( "Remove the parentheses around the expression -y+39.
\n" ); document.write( "x=-y+39_-y+39=y+5\r
\n" ); document.write( "\n" ); document.write( "Since y contains the variable to solve for, move it to the left-hand side of the equation by subtracting y from both sides.
\n" ); document.write( "x=-y+39_-y+39-y=5\r
\n" ); document.write( "\n" ); document.write( "Since -y and -y are like terms, subtract y from -y to get -2y.
\n" ); document.write( "x=-y+39_-2y+39=5\r
\n" ); document.write( "\n" ); document.write( "Since 39 does not contain the variable to solve for, move it to the right-hand side of the equation by subtracting 39 from both sides.
\n" ); document.write( "x=-y+39_-2y=-39+5\r
\n" ); document.write( "\n" ); document.write( "Add 5 to -39 to get -34.
\n" ); document.write( "x=-y+39_-2y=-34\r
\n" ); document.write( "\n" ); document.write( "Divide each term in the equation by -2.
\n" ); document.write( "x=-y+39_-(2y)/(-2)=-(34)/(-2)\r
\n" ); document.write( "\n" ); document.write( "Simplify the left-hand side of the equation by canceling the common factors.
\n" ); document.write( "x=-y+39_y=-(34)/(-2)\r
\n" ); document.write( "\n" ); document.write( "Simplify the right-hand side of the equation by simplifying each term.
\n" ); document.write( "x=-y+39_y=17\r
\n" ); document.write( "\n" ); document.write( "Replace all occurrences of y with the solution found by solving the last equation for y. In this case, the value substituted is 17.
\n" ); document.write( "x=-(17)+39_y=17\r
\n" ); document.write( "\n" ); document.write( "Multiply -1 by the 17 inside the parentheses.
\n" ); document.write( "x=-17+39_y=17\r
\n" ); document.write( "\n" ); document.write( "Add 39 to -17 to get 22.
\n" ); document.write( "x=22_y=17\r
\n" ); document.write( "\n" ); document.write( "This is the solution to the system of equations.
\n" ); document.write( "x=22_y=17\r
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\n" ); document.write( "\n" ); document.write( "x+y=328_x=y+12\r
\n" ); document.write( "\n" ); document.write( "Since y does not contain the variable to solve for, move it to the right-hand side of the equation by subtracting y from both sides.
\n" ); document.write( "x=-y+328_x=y+12\r
\n" ); document.write( "\n" ); document.write( "Replace all occurrences of x with the solution found by solving the last equation for x. In this case, the value substituted is -y+328.
\n" ); document.write( "x=-y+328_(-y+328)=y+12\r
\n" ); document.write( "\n" ); document.write( "Remove the parentheses around the expression -y+328.
\n" ); document.write( "x=-y+328_-y+328=y+12\r
\n" ); document.write( "\n" ); document.write( "Since y contains the variable to solve for, move it to the left-hand side of the equation by subtracting y from both sides.
\n" ); document.write( "x=-y+328_-y+328-y=12\r
\n" ); document.write( "\n" ); document.write( "Since -y and -y are like terms, subtract y from -y to get -2y.
\n" ); document.write( "x=-y+328_-2y+328=12\r
\n" ); document.write( "\n" ); document.write( "Since 328 does not contain the variable to solve for, move it to the right-hand side of the equation by subtracting 328 from both sides.
\n" ); document.write( "x=-y+328_-2y=-328+12\r
\n" ); document.write( "\n" ); document.write( "Add 12 to -328 to get -316.
\n" ); document.write( "x=-y+328_-2y=-316\r
\n" ); document.write( "\n" ); document.write( "Divide each term in the equation by -2.
\n" ); document.write( "x=-y+328_-(2y)/(-2)=-(316)/(-2)\r
\n" ); document.write( "\n" ); document.write( "Simplify the left-hand side of the equation by canceling the common factors.
\n" ); document.write( "x=-y+328_y=-(316)/(-2)\r
\n" ); document.write( "\n" ); document.write( "Simplify the right-hand side of the equation by simplifying each term.
\n" ); document.write( "x=-y+328_y=158\r
\n" ); document.write( "\n" ); document.write( "Replace all occurrences of y with the solution found by solving the last equation for y. In this case, the value substituted is 158.
\n" ); document.write( "x=-(158)+328_y=158\r
\n" ); document.write( "\n" ); document.write( "Multiply -1 by the 158 inside the parentheses.
\n" ); document.write( "x=-158+328_y=158\r
\n" ); document.write( "\n" ); document.write( "Add 328 to -158 to get 170.
\n" ); document.write( "x=170_y=158\r
\n" ); document.write( "\n" ); document.write( "This is the solution to the system of equations.
\n" ); document.write( "x=170_y=158
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