document.write( "Question 391434: Solve each system by substitution.\r
\n" ); document.write( "\n" ); document.write( "y=-3x+9
\n" ); document.write( "-4x+2y=-2 \n" ); document.write( "

Algebra.Com's Answer #277731 by ewatrrr(24785) $\"\"$ $\"About$

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document.write( "Hi,         
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document.write( "Solving the system by substitution
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document.write( "y = -3x+9   green line
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document.write( "-4x+2y=-2   blue line
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document.write( "-4x+2(-3x+9)= -2
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document.write( "-4x -6x + 18 = -2
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document.write( "   -10x = -20
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document.write( "      x = 2
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document.write( "      y = -3x+9
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document.write( "      y = -6+9
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document.write( "      y = 3
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