3(w+7)-8w=31

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Solution for 3(w+7)-8w=31 equation:


Simplifying
3(w + 7) + -8w = 31

Reorder the terms:
3(7 + w) + -8w = 31
(7 * 3 + w * 3) + -8w = 31
(21 + 3w) + -8w = 31

Combine like terms: 3w + -8w = -5w
21 + -5w = 31

Solving
21 + -5w = 31

Solving for variable 'w'.

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

Add '-21' to each side of the equation.
21 + -21 + -5w = 31 + -21

Combine like terms: 21 + -21 = 0
0 + -5w = 31 + -21
-5w = 31 + -21

Combine like terms: 31 + -21 = 10
-5w = 10

Divide each side by '-5'.
w = -2

Simplifying
w = -2

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