document.write( "Question 370447: solve by the addition method
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\n" ); document.write( "5x-2y=-1
\n" ); document.write( "7y=24-3x\r
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Algebra.Com's Answer #264085 by checkley77(12844)\"\" \"About 
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5x-2y=-1 multiply by 7
\n" ); document.write( "7y=24-3x multiply by 2 & add.
\n" ); document.write( "35x-14y=-7
\n" ); document.write( "6x+14y=48
\n" ); document.write( "----------------
\n" ); document.write( "41x=41
\n" ); document.write( "x=41/41=1 ans. for x.
\n" ); document.write( "5*1-2y=-1
\n" ); document.write( "5-2y=-1
\n" ); document.write( "-2y=-1-5
\n" ); document.write( "-2y=-6
\n" ); document.write( "y=-6/-2=3 ans. for y.
\n" ); document.write( "Proof:
\n" ); document.write( "7*3=24-3*1
\n" ); document.write( "21=24-3
\n" ); document.write( "21=21\r
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