document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=416366>Question 416366</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Solve 2x-y=9 and 7x+4y=1 by using the substitution method. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #291717 by </B><A HREF=/tutors/aboutme.mpl?userid=krice134><B>krice134(1)</B></A><img src=\"/images/stars/iconNewId_16x16.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=krice134><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=291717\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 2x-y=9,7x+4y=1<BR>\n" );
document.write( "Since 2x does not contain the variable A letter used to represent a number value in an expression or an equation. to solve for, move it to the right-hand side of the equation A mathematical statement that says two expressions have the same value; any number sentence with an = . by subtracting 2x from both sides. -y=-2x+9 7x+4y=1<BR>\n" );
document.write( " To compute a product; to perform a multiplication. Any expression written as a product or quotient. Example: 2xy , , or in the equation A mathematical statement that says two expressions have the same value; any number sentence with an = . by -1.<BR>\n" );
document.write( "-y · -1=-2x · -1+9 · -1  7x+4y=1<BR>\n" );
document.write( "multiply To compute a product; to perform a multiplication. -y by -1 to get y.<BR>\n" );
document.write( "y=-2x · -1+9 · -1 7x+4y=1<BR>\n" );
document.write( "Simplify the right-hand side of the equation A mathematical statement that says two expressions have the same value; any number sentence with an = . by multiplying out all the term Any expression written as a product or quotient. y=2x-9 7x+4y=1 <BR>\n" );
document.write( "Replace all occurrences of y with the solution The value of a variable that makes an equation true. found by solving the last equation A mathematical statement that says two expressions have the same value; any number sentence with an = . for y. In this case, the value substituted is 2x-9.<BR>\n" );
document.write( "y=2x-9<BR>\n" );
document.write( "7x+4(2x-9)=1 <BR>\n" );
document.write( "Multiply To compute a product; to perform a multiplication. 4 by each term Any expression written as a product or quotient. Example: 2xy , , or inside the parentheses y=2x-9 7x+8x-36=1 Since 7x and 8x are like term Any expression written as a product or quotient. Example: 2xy , , or , add 8x to 7x to get 15x y=2x-9<BR>\n" );
document.write( "15x-36=1<BR>\n" );
document.write( "Since -36 does not contain the variable A letter used to represent a number value in an expression or an equation. to solve for, move it to the right-hand side of the equation A mathematical statement that says two expressions have the same value; any number sentence with an = . by adding 36 to both sides.<BR>\n" );
document.write( "y=2x-9<BR>\n" );
document.write( "15x=36+1 <BR>\n" );
document.write( "Add 1 to 36 to get 37.\r<BR>\n" );
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document.write( "y=2x-9<BR>\n" );
document.write( "15x=37 <BR>\n" );
document.write( "divide To perform the operation of division. each term Any expression written as a product or quotient. Example: 2xy , , or in the equation A mathematical statement that says two expressions have the same value; any number sentence with an = . by 15.<BR>\n" );
document.write( "y=2x-9<BR>\n" );
document.write( "To add fractionsGlossaryfraction A number used to name a part of a group or a whole. The number below the division line is the denominator, and the number above the division line is the numerator. , the denominatorsGlossarydenominator The bottom part of a fraction. must be equal. The denominatorsGlossarydenominator The bottom part of a fraction. can be made equal by finding the least common denominatorGlossarydenominator The bottom part of a fraction. (LCD). In this case, the LCDGlossaryLCD L east C ommon D enominator; the smallest multiple of the denominators of two or more fractions. is 15. Next, multiplyGlossarymultiply To compute a product; to perform a multiplication. each fractionGlossaryfraction A number used to name a part of a group or a whole. The number below the division line is the denominator, and the number above the division line is the numerator. by a factorGlossaryfactor One of two or more expressions that are multiplied together to get a product. of 1 that will create the LCDGlossaryLCD L east C ommon D enominator; the smallest multiple of the denominators of two or more fractions. in each of the fractionsGlossaryfraction A number used to name a part of a group or a whole. The number below the division line is the denominator, and the number above the division line is the numerator. <BR>\n" );
document.write( "This is the solution The value of a variable that makes an equation true. to the system of equation A mathematical statement that says two expressions have the same value; any number sentence with an =  Answer is y=61/15, x=37/15\r<BR>\n" );
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document.write( " </SPAN>\n" );
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