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OpenStudy (anonymous):
Solve by substitution: 2x-2y=-6 and y=x+3
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OpenStudy (anonymous):
The second one states that y = x + 3 so you can plug that into the first equation. 2x - 2(x+3) = -6 2x - 2x - 6 = -6 Positive 2x and negative 2x cancel out, so you're left with -6 = -6
OpenStudy (anonymous):
Are there answer choices to the question or do you just have to work it out?
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