20=25-3(-1-3w)

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Solution for 20=25-3(-1-3w) equation:


Simplifying
20 = 25 + -3(-1 + -3w)
20 = 25 + (-1 * -3 + -3w * -3)
20 = 25 + (3 + 9w)

Combine like terms: 25 + 3 = 28
20 = 28 + 9w

Solving
20 = 28 + 9w

Solving for variable 'w'.

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

Add '-9w' to each side of the equation.
20 + -9w = 28 + 9w + -9w

Combine like terms: 9w + -9w = 0
20 + -9w = 28 + 0
20 + -9w = 28

Add '-20' to each side of the equation.
20 + -20 + -9w = 28 + -20

Combine like terms: 20 + -20 = 0
0 + -9w = 28 + -20
-9w = 28 + -20

Combine like terms: 28 + -20 = 8
-9w = 8

Divide each side by '-9'.
w = -0.8888888889

Simplifying
w = -0.8888888889

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