Question

Simplify the expression and then evaluate it for the given value of the variable:

(6−2x)+(15−3x) for x=−0.2
PLEASE HELP!!!!!!!!!!!!!!!!!

Answer 1

• -5x+21
• 22

Explanation:

There are no factors outside the parentheses that need to be distributed, so the parentheses can be simply dropped:

6 -2x +15 -3x

The terms can be rearranged to put like terms next to each other:

-2x -3x +6 +15

and the like terms can be combined.

-5x +21 . . . . simplified expression

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Put the value of x where x is, then do the arithmetic.

-5(-0.2) +21 = 1 +21 = 22