3(w+7)-8w=-4

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Solution for 3(w+7)-8w=-4 equation:


Simplifying
3(w + 7) + -8w = -4

Reorder the terms:
3(7 + w) + -8w = -4
(7 * 3 + w * 3) + -8w = -4
(21 + 3w) + -8w = -4

Combine like terms: 3w + -8w = -5w
21 + -5w = -4

Solving
21 + -5w = -4

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 = -4 + -21

Combine like terms: 21 + -21 = 0
0 + -5w = -4 + -21
-5w = -4 + -21

Combine like terms: -4 + -21 = -25
-5w = -25

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

Simplifying
w = 5

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