document.write( "Question 70153: Can you please help me solve the problem...instructions...solve the system by substitution.\r
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document.write( "3x - 2y = -19
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document.write( " y = 2x + 12 \n" );
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Algebra.Com's Answer #50027 by checkley75(3666)![]() ![]() ![]() You can put this solution on YOUR website! y=2x+12 then we substitute (2x+12) for y in the other equation and solve for x \n" ); document.write( "3x-2(2x+12)=-19 \n" ); document.write( "3x-4x-24=-19 \n" ); document.write( "-x=-19+24 \n" ); document.write( "-x=5 \n" ); document.write( "x=-5 answer now substitute (-5) for x & solve for y \n" ); document.write( "y=2*-5=12 \n" ); document.write( "y=-10+12 \n" ); document.write( "y=2 answer \n" ); document.write( "proof \n" ); document.write( "3*-5-2*2=-19 \n" ); document.write( "-15-4=-19 \n" ); document.write( "-19=-19 \n" ); document.write( " \n" ); document.write( " |