document.write( "Question 984514: System of equations with three variables. Need help to reduce equations (lose fractions) and follow systems of three linear equations. Direction on how to do so would be great so I can complete other similar questions. Thank you \r
\n" ); document.write( "\n" ); document.write( "[3(x+6/5)+y/2+2z=25\r
\n" ); document.write( "\n" ); document.write( "x/2+5y-2/4+z=17\r
\n" ); document.write( "\n" ); document.write( "x-(2(y-1/7)-3z=-22\r
\n" ); document.write( "\n" ); document.write( "Solve following system equations with three linear equations.
\n" ); document.write( "Thank you
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Algebra.Com's Answer #605450 by ankor@dixie-net.com(22740)\"\" \"About 
You can put this solution on YOUR website!
try to simplify each and get rid of the denominators
\n" ); document.write( "3(x+\"6%2F5\")+\"y%2F2\" + 2z = 25
\n" ); document.write( "distribute
\n" ); document.write( "3x+\"18%2F5\"+\"y%2F2\" + 2z = 25
\n" ); document.write( "Multiply equation by 10, cancel the denominators
\n" ); document.write( "10(3x) + 2(18) + 5y + 10(2z) = 10(25)
\n" ); document.write( "30x + 36 + 5y + 20z = 250
\n" ); document.write( "30x + 5y + 20z = 250 - 36
\n" ); document.write( "30x + 5y + 20z = 214
\n" ); document.write( ":
\n" ); document.write( "\"x%2F2\"+5y-\"2%2F4\"+z=17
\n" ); document.write( "reduce fraction
\n" ); document.write( "\"x%2F2\"+5y-\"1%2F2\"+z=17
\n" ); document.write( "multiply by 2
\n" ); document.write( "x + 2(5y) - 1 + 2z = 2(17)
\n" ); document.write( "x + 10y + 2z = 34 + 1
\n" ); document.write( "x + 10y + 2z = 35
\n" ); document.write( ":
\n" ); document.write( "x-(2(y-\"1%2F7\") - 3z = -22
\n" ); document.write( "Distribute
\n" ); document.write( "x-(2y - \"2%2F7\") - 3z = -22
\n" ); document.write( "minus a minus is a plus
\n" ); document.write( "x - 2y + \"2%2F7\" - 3z = -22
\n" ); document.write( "multiply equation by 7
\n" ); document.write( "7x - 7(2y) + 2 - 7(3z) = 7(-22)
\n" ); document.write( "7x - 14y - 21z = -154 - 2
\n" ); document.write( "7x - 14y - 21z = -156
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\n" ); document.write( "This is how you simplify the equations, but I checked the solutions using the matrix feature on my Ti83 and none of the solutions are integers, either I made a mistake here or something is wrong with the problem. CK ankor@att.net
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