document.write( "Question 454327: Solve the linear system by using substitution. 3x+2y=5, 5x-9y=-4 \n" ); document.write( "
Algebra.Com's Answer #853402 by josgarithmetic(39720)\"\" \"About 
You can put this solution on YOUR website!
The first one has a 3x, and the second one has a 5x.\r
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\n" ); document.write( "\n" ); document.write( "Same system \"system%2815x%2B10y=25%2C15x-27y=-12%29\"\r
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\n" ); document.write( "\n" ); document.write( "\"system%2815x=-10y%2B25%2C15x-27y=-12%29\"\r
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\n" ); document.write( "\n" ); document.write( "Substituting for 15x in the second equation
\n" ); document.write( "\"-10y%2B25-27y=-12\"
\n" ); document.write( "\"-37y%2B25=-12\"
\n" ); document.write( "\"-37y=-37\"
\n" ); document.write( "\"y=1\" Now use this any way you want to find x.
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