document.write( "Question 1001311: find the solution set of y=7x-12 and 4x-2y=34 using elimination, substitution and graphical method. \n" ); document.write( "

Algebra.Com's Answer #629437 by satyareddy22(84) $\"\"$ $\"About$

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y=7x-12------(1)
\n" ); document.write( "4x-2y=34 ----(2)
\n" ); document.write( "substituting (1) in (2)
\n" ); document.write( "4x-2(7x-12)=34
\n" ); document.write( "4x-14x+24=34
\n" ); document.write( "-10x=34-24=10
\n" ); document.write( "-10x=10
\n" ); document.write( "x=10/(-10)=-1=>x=-1
\n" ); document.write( "now substituting x=-1 in (1)
\n" ); document.write( "y=7(-1)-12=-7-12=-19
\n" ); document.write( "y=-19 \n" ); document.write( "

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