-7-9=2w+2w

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Solution for -7-9=2w+2w equation:


Simplifying
-7 + -9 = 2w + 2w

Combine like terms: -7 + -9 = -16
-16 = 2w + 2w

Combine like terms: 2w + 2w = 4w
-16 = 4w

Solving
-16 = 4w

Solving for variable 'w'.

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

Add '-4w' to each side of the equation.
-16 + -4w = 4w + -4w

Combine like terms: 4w + -4w = 0
-16 + -4w = 0

Add '16' to each side of the equation.
-16 + 16 + -4w = 0 + 16

Combine like terms: -16 + 16 = 0
0 + -4w = 0 + 16
-4w = 0 + 16

Combine like terms: 0 + 16 = 16
-4w = 16

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

Simplifying
w = -4

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