40=4w-12

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Solution for 40=4w-12 equation:


Simplifying
40 = 4w + -12

Reorder the terms:
40 = -12 + 4w

Solving
40 = -12 + 4w

Solving for variable 'w'.

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

Add '-4w' to each side of the equation.
40 + -4w = -12 + 4w + -4w

Combine like terms: 4w + -4w = 0
40 + -4w = -12 + 0
40 + -4w = -12

Add '-40' to each side of the equation.
40 + -40 + -4w = -12 + -40

Combine like terms: 40 + -40 = 0
0 + -4w = -12 + -40
-4w = -12 + -40

Combine like terms: -12 + -40 = -52
-4w = -52

Divide each side by '-4'.
w = 13

Simplifying
w = 13

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