w-[-7]=2

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Solution for w-[-7]=2 equation: 


Simplifying
w + -1[-7] = 2

Multiply -1 * -7
w + 7 = 2

Reorder the terms:
7 + w = 2

Solving
7 + w = 2

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 + w = 2 + -7

Combine like terms: 7 + -7 = 0
0 + w = 2 + -7
w = 2 + -7

Combine like terms: 2 + -7 = -5
w = -5

Simplifying
w = -5

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