How do you evaluate $5x-7+2x$ when x=-3?

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Answer 1 · 2016-07-27T13:56:02

Substitute -3 for x, then simplify.

Just substitute -3 for the variable x, then complete the subtraction:

$5(-3)-7+2(-3)=-15-7-6=-28$

-28 is our answer.

How do you evaluate 5x-7+2x5x-7+2x when x=-3?