20=-7w+3(w-4)

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Solution for 20=-7w+3(w-4) equation:


Simplifying
20 = -7w + 3(w + -4)

Reorder the terms:
20 = -7w + 3(-4 + w)
20 = -7w + (-4 * 3 + w * 3)
20 = -7w + (-12 + 3w)

Reorder the terms:
20 = -12 + -7w + 3w

Combine like terms: -7w + 3w = -4w
20 = -12 + -4w

Solving
20 = -12 + -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.
20 + 4w = -12 + -4w + 4w

Combine like terms: -4w + 4w = 0
20 + 4w = -12 + 0
20 + 4w = -12

Add '-20' to each side of the equation.
20 + -20 + 4w = -12 + -20

Combine like terms: 20 + -20 = 0
0 + 4w = -12 + -20
4w = -12 + -20

Combine like terms: -12 + -20 = -32
4w = -32

Divide each side by '4'.
w = -8

Simplifying
w = -8

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