document.write( "Question 325103: 4x + y = 11
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document.write( "x + 2y = 8 \r
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document.write( "Can some please explain to me how to solve the above linear equation using the substitution method?\r
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document.write( "I got the answers
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document.write( "y=3
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document.write( "x=2\r
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document.write( "I think I did something wrong \n" );
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Algebra.Com's Answer #232808 by mananth(16946)![]() ![]() You can put this solution on YOUR website! 4x + y = 11......1 \n" ); document.write( "x + 2y = 8 ......2 \n" ); document.write( ".. \n" ); document.write( "Equation 2 \n" ); document.write( "x+2y=8 \n" ); document.write( "add -2y \n" ); document.write( "x+2y-2y=8-2y \n" ); document.write( "x= 8-2y \n" ); document.write( ".. \n" ); document.write( "4x+y=11 \n" ); document.write( "plug the value of x in this equation \n" ); document.write( "4(8-2y)+y= 11 \n" ); document.write( "32-8y+y=11 \n" ); document.write( "Add -32 to both sides \n" ); document.write( "-32+32-7y=11-32 \n" ); document.write( "-7y=-21 \n" ); document.write( "y=-21/-7 \n" ); document.write( "y=3 \n" ); document.write( ".. \n" ); document.write( "plug the value of x in the equation x+2y=8 \n" ); document.write( "x+6=8 \n" ); document.write( "x=8-6=2 \n" ); document.write( "x=2 \n" ); document.write( " |