3(12-2w)+21=

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Solution for 3(12-2w)+21= equation:


Simplifying
3(12 + -2w) + 21 = 0
(12 * 3 + -2w * 3) + 21 = 0
(36 + -6w) + 21 = 0

Reorder the terms:
36 + 21 + -6w = 0

Combine like terms: 36 + 21 = 57
57 + -6w = 0

Solving
57 + -6w = 0

Solving for variable 'w'.

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

Add '-57' to each side of the equation.
57 + -57 + -6w = 0 + -57

Combine like terms: 57 + -57 = 0
0 + -6w = 0 + -57
-6w = 0 + -57

Combine like terms: 0 + -57 = -57
-6w = -57

Divide each side by '-6'.
w = 9.5

Simplifying
w = 9.5

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