document.write( "Question 395629: Solve by substitution.
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Algebra.Com's Answer #280758 by ewatrrr(24785) $\"\"$ $\"About$

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document.write( "Hi
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document.write( "Solving by substitution
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document.write( "x + 2y = 1   OR x = -2y+1
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document.write( "4x + 8y = -5
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document.write( "4(-2y+1)+8y = -5
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document.write( " -8y + 4 + 8y = -5
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document.write( "        4 ≠ -5  There are NO solutions\r
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document.write( "x + 2y = 1     OR y = -(1/2)x + 1/2
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document.write( "4x + 8y = -5   OR y = -(1/2)x - 5/8
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document.write( "These are parallel lines
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