20=30-2(-4-5w)

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Solution for 20=30-2(-4-5w) equation:


Simplifying
20 = 30 + -2(-4 + -5w)
20 = 30 + (-4 * -2 + -5w * -2)
20 = 30 + (8 + 10w)

Combine like terms: 30 + 8 = 38
20 = 38 + 10w

Solving
20 = 38 + 10w

Solving for variable 'w'.

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

Add '-10w' to each side of the equation.
20 + -10w = 38 + 10w + -10w

Combine like terms: 10w + -10w = 0
20 + -10w = 38 + 0
20 + -10w = 38

Add '-20' to each side of the equation.
20 + -20 + -10w = 38 + -20

Combine like terms: 20 + -20 = 0
0 + -10w = 38 + -20
-10w = 38 + -20

Combine like terms: 38 + -20 = 18
-10w = 18

Divide each side by '-10'.
w = -1.8

Simplifying
w = -1.8

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