document.write( "Question 372373: How do you solve for y in the following equations:
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document.write( "-3/4x+y/3=5/12
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document.write( "x/5-y=4/5 \n" );
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Algebra.Com's Answer #265245 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! -3/4x+y/3=5/12 \n" ); document.write( "x/5-y=4/5 \n" ); document.write( "--- \n" ); document.write( "Get rid of the fractions: \n" ); document.write( "-9x+4y = 5 \n" ); document.write( "x - 5y = 4 \n" ); document.write( "-------- \n" ); document.write( "Solve the 2nd equation for \"x\": \n" ); document.write( "x = 5y+4 \n" ); document.write( "Substitute and solve for \"y\": \n" ); document.write( "-9(5y+4) + 4y = 5 \n" ); document.write( "-45y-36 +4y = 5 \n" ); document.write( "------------- \n" ); document.write( "-41y = 41 \n" ); document.write( "y = -1 \n" ); document.write( "=================== \n" ); document.write( "Substitute into x = 5y+4 to solve for \"x\": \n" ); document.write( "x = 5(-1)+4 \n" ); document.write( "x = -1 \n" ); document.write( "---------------- \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |