5(w+3)-8w=21

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Solution for 5(w+3)-8w=21 equation:


Simplifying
5(w + 3) + -8w = 21

Reorder the terms:
5(3 + w) + -8w = 21
(3 * 5 + w * 5) + -8w = 21
(15 + 5w) + -8w = 21

Combine like terms: 5w + -8w = -3w
15 + -3w = 21

Solving
15 + -3w = 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 + -3w = 21 + -15

Combine like terms: 15 + -15 = 0
0 + -3w = 21 + -15
-3w = 21 + -15

Combine like terms: 21 + -15 = 6
-3w = 6

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

Simplifying
w = -2

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