7w-15w=40

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Solution for 7w-15w=40 equation: 


Simplifying
7w + -15w = 40

Combine like terms: 7w + -15w = -8w
-8w = 40

Solving
-8w = 40

Solving for variable 'w'.

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

Divide each side by '-8'.
w = -5

Simplifying
w = -5

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