13=-15+4w

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Solution for 13=-15+4w equation:


Simplifying
13 = -15 + 4w

Solving
13 = -15 + 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.
13 + -4w = -15 + 4w + -4w

Combine like terms: 4w + -4w = 0
13 + -4w = -15 + 0
13 + -4w = -15

Add '-13' to each side of the equation.
13 + -13 + -4w = -15 + -13

Combine like terms: 13 + -13 = 0
0 + -4w = -15 + -13
-4w = -15 + -13

Combine like terms: -15 + -13 = -28
-4w = -28

Divide each side by '-4'.
w = 7

Simplifying
w = 7

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