-(w-7)=3

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Solution for -(w-7)=3 equation: 


Simplifying
-1(w + -7) = 3

Reorder the terms:
-1(-7 + w) = 3
(-7 * -1 + w * -1) = 3
(7 + -1w) = 3

Solving
7 + -1w = 3

Solving for variable 'w'.

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

Add '-7' to each side of the equation.
7 + -7 + -1w = 3 + -7

Combine like terms: 7 + -7 = 0
0 + -1w = 3 + -7
-1w = 3 + -7

Combine like terms: 3 + -7 = -4
-1w = -4

Divide each side by '-1'.
w = 4

Simplifying
w = 4

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