document.write( "Question 332135: ELIMINATION METHOD
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document.write( "3X-5Y=66
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document.write( "3Y=8-5X\r
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document.write( "SUBSITUTION METHOD
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document.write( "15X-10Y=-5
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document.write( "5Y+3+10X \n" );
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Algebra.Com's Answer #238043 by checkley77(12844)![]() ![]() ![]() You can put this solution on YOUR website! ELIMINATION METHOD \n" ); document.write( "3X-5Y=66 MULTIPLY BY 3 \n" ); document.write( "3Y=8-5X \n" ); document.write( "5X+3Y=8 MULTIPLY BY 5 & ADD. \n" ); document.write( "9X-15Y=198 \n" ); document.write( "25X+15Y=40 \n" ); document.write( "------------------ \n" ); document.write( "34X=238 \n" ); document.write( "X=238/34 \n" ); document.write( "X=7 ANS. \n" ); document.write( "3*7-5Y=66 \n" ); document.write( "21-5Y=66 \n" ); document.write( "-5Y=66-21 \n" ); document.write( "-5Y=45 \n" ); document.write( "Y=45/-5 \n" ); document.write( "Y=-9 ANS. \n" ); document.write( "PROOF: \n" ); document.write( "5*7+3*-9=8 \n" ); document.write( "35-27=8 \n" ); document.write( "8=8 \n" ); document.write( "SUBSITUTION METHOD \n" ); document.write( "15X-10Y=-5 \n" ); document.write( "5Y+3+10X [no = sign in this equation. can't solve. \n" ); document.write( " \n" ); document.write( " |