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(x - 4) + (2x - 7) = 3x - 11

You get that by:

Adding the x terms (one plus two) to get 3x; and adding the plain (non-x) numbers together. In this can both plain numbers are negative, so you get a negative of eleven, which is the sum of the absolute values 4 and 7.

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It is 3x - 11.

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7y ago
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Q: What is the sum of (x-4) plus (2x-7)?
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