document.write( "Question 138029: Solve by the substitution method.
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document.write( "4x+4y=-4
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document.write( "-2x+y=11
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document.write( "What is the solution to the system?
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document.write( "Help with this too please?!?!! \n" );
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Algebra.Com's Answer #100929 by scott8148(6628)![]() ![]() You can put this solution on YOUR website! adding 2x to the 2nd equation __ y=11+2x\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "SUBSTITUTING into the 1st equation __ 4x+4(11+2x)=-4 __ 4x+44+8x=-4 __ 12x=-48 __ x=-4\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "SUBSTITUTING into the 2nd equation __ -2(-4)+y=11 __ 8+y=11 __ y=3 \n" ); document.write( " |