7w+-3w=15

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Solution for 7w+-3w=15 equation: 


Simplifying
7w + -3w = 15

Combine like terms: 7w + -3w = 4w
4w = 15

Solving
4w = 15

Solving for variable 'w'.

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

Divide each side by '4'.
w = 3.75

Simplifying
w = 3.75

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