document.write( "Question 60857: Solve the system by addition. 5x – 8y = –14 x – 2y = –6 \n" ); document.write( "
Algebra.Com's Answer #41827 by checkley71(8403)\"\" \"About 
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5X-8Y=-14
\n" ); document.write( "X-2Y=-6 THEN X=2Y-6 AND WE SUBSTITUTE (2Y-6) FOR X IN THE OTHER EQUATION
\n" ); document.write( "WE GET
\n" ); document.write( "5(2Y-6)-8Y=-14
\n" ); document.write( "10Y-30-8Y=-14
\n" ); document.write( "10Y-8Y=30-14
\n" ); document.write( "2Y=16
\n" ); document.write( "Y=16/2
\n" ); document.write( "Y=8 SOLUTION
\n" ); document.write( "X=2*8-6
\n" ); document.write( "X=16-6
\n" ); document.write( "X=10 SOLUTION
\n" ); document.write( "PROOF
\n" ); document.write( "5*10-8*8=-14
\n" ); document.write( "50-64=-14
\n" ); document.write( "-14=-14
\n" ); document.write( "
\n" );