12-3(w+7)=15

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Solution for 12-3(w+7)=15 equation:


Simplifying
12 + -3(w + 7) = 15

Reorder the terms:
12 + -3(7 + w) = 15
12 + (7 * -3 + w * -3) = 15
12 + (-21 + -3w) = 15

Combine like terms: 12 + -21 = -9
-9 + -3w = 15

Solving
-9 + -3w = 15

Solving for variable 'w'.

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

Add '9' to each side of the equation.
-9 + 9 + -3w = 15 + 9

Combine like terms: -9 + 9 = 0
0 + -3w = 15 + 9
-3w = 15 + 9

Combine like terms: 15 + 9 = 24
-3w = 24

Divide each side by '-3'.
w = -8

Simplifying
w = -8

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