-7w+4w=7-16

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Solution for -7w+4w=7-16 equation: 


Simplifying
-7w + 4w = 7 + -16

Combine like terms: -7w + 4w = -3w
-3w = 7 + -16

Combine like terms: 7 + -16 = -9
-3w = -9

Solving
-3w = -9

Solving for variable 'w'.

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

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

Simplifying
w = 3

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