document.write( "Question 356620: 3x+y=10
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document.write( "y=-2x+4\r
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document.write( "solve this by using substitution \n" );
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Algebra.Com's Answer #254555 by robertb(5830) You can put this solution on YOUR website! Substitute the bottom equation into the top equation: \n" ); document.write( "3x+(-2x+4)=10. \n" ); document.write( "3x-2x+4 = 10. \n" ); document.write( "x = 6. Then \n" ); document.write( "y = -2(6) + 4 = -12+4 = -8. \n" ); document.write( " |