Add 2x-3y + 42, 7x + 3y - 2
and 3x-y-27
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Step-by-step explanation:
Question is 2x-3y+42+7x+3y-2+3x-y-27
= 2x+7x+3x-3y+3y-y+42-2-27
= 12x-y+13
So the answer is 12x-y+13
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