document.write( "Question 1035180: 2/5x+3/4y=5/2
\n" ); document.write( "-2/3x+1/2y=3/4 find answer in substitution and show all your work
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Algebra.Com's Answer #649831 by josmiceli(19441) $\"\"$ $\"About$

You can put this solution on YOUR website!
(1) $\"+%282%2F5%29%2Ax+%2B+%283%2F4%29%2Ay+=+5%2F2+\"$
\n" ); document.write( "(2) $\"+%28-2%2F3%29%2Ax+%2B+%281%2F2%29%2Ay+=+3%2F4+\"$
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\n" ); document.write( "Multiply both sides of (1) by $\"+20+\"$
\n" ); document.write( "Multiply both sides of (2) by $\"+12+\"$
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\n" ); document.write( "(1) $\"+8x+%2B+15y+=+50+\"$
\n" ); document.write( "(2) $\"+-8x+%2B+6y+=+9+\"$
\n" ); document.write( "----------------------
\n" ); document.write( "Add the equations
\n" ); document.write( " $\"+21y+=+59+\"$
\n" ); document.write( " $\"+y+=+59%2F21+\"$
\n" ); document.write( "--------------------
\n" ); document.write( "and
\n" ); document.write( "(2) $\"+-8x+%2B+6%2A%28+59%2F21+%29+=+9+\"$
\n" ); document.write( "(2) $\"+8x+=+118%2F7+-+63%2F7+\"$
\n" ); document.write( "(2) $\"+8x+=+55%2F7+\"$
\n" ); document.write( "(2) $\"+x+=+55%2F56+\"$
\n" ); document.write( "----------------
\n" ); document.write( "check the answers:
\n" ); document.write( "(1) $\"+%282%2F5%29%2Ax+%2B+%283%2F4%29%2Ay+=+5%2F2+\"$
\n" ); document.write( "(1) $\"+%282%2F5%29%2A%2855%2F56%29+%2B+%283%2F4%29%2A%2859%2F21%29+=+5%2F2+\"$
\n" ); document.write( "(1) $\"+22%2F56+%2B+59%2F28+=+5%2F2+\"$
\n" ); document.write( "(1) $\"+22%2F56+%2B+118%2F56+=+140%2F56+\"$
\n" ); document.write( "(1) $\"+140%2F56+=+140%2F56+\"$
\n" ); document.write( "-----------------------
\n" ); document.write( "You can check (2) \n" ); document.write( "

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