-7w+5(w+3)=21

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Solution for -7w+5(w+3)=21 equation:


Simplifying
-7w + 5(w + 3) = 21

Reorder the terms:
-7w + 5(3 + w) = 21
-7w + (3 * 5 + w * 5) = 21
-7w + (15 + 5w) = 21

Reorder the terms:
15 + -7w + 5w = 21

Combine like terms: -7w + 5w = -2w
15 + -2w = 21

Solving
15 + -2w = 21

Solving for variable 'w'.

Move all terms containing w to the left, all other terms to the right.

Add '-15' to each side of the equation.
15 + -15 + -2w = 21 + -15

Combine like terms: 15 + -15 = 0
0 + -2w = 21 + -15
-2w = 21 + -15

Combine like terms: 21 + -15 = 6
-2w = 6

Divide each side by '-2'.
w = -3

Simplifying
w = -3

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