(3w-8)-(4-9w)+3=7w-2-(5w+9-31)

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Solution for (3w-8)-(4-9w)+3=7w-2-(5w+9-31) equation:


Simplifying
(3w + -8) + -1(4 + -9w) + 3 = 7w + -2 + -1(5w + 9 + -31)

Reorder the terms:
(-8 + 3w) + -1(4 + -9w) + 3 = 7w + -2 + -1(5w + 9 + -31)

Remove parenthesis around (-8 + 3w)
-8 + 3w + -1(4 + -9w) + 3 = 7w + -2 + -1(5w + 9 + -31)
-8 + 3w + (4 * -1 + -9w * -1) + 3 = 7w + -2 + -1(5w + 9 + -31)
-8 + 3w + (-4 + 9w) + 3 = 7w + -2 + -1(5w + 9 + -31)

Reorder the terms:
-8 + -4 + 3 + 3w + 9w = 7w + -2 + -1(5w + 9 + -31)

Combine like terms: -8 + -4 = -12
-12 + 3 + 3w + 9w = 7w + -2 + -1(5w + 9 + -31)

Combine like terms: -12 + 3 = -9
-9 + 3w + 9w = 7w + -2 + -1(5w + 9 + -31)

Combine like terms: 3w + 9w = 12w
-9 + 12w = 7w + -2 + -1(5w + 9 + -31)

Reorder the terms:
-9 + 12w = 7w + -2 + -1(9 + -31 + 5w)

Combine like terms: 9 + -31 = -22
-9 + 12w = 7w + -2 + -1(-22 + 5w)
-9 + 12w = 7w + -2 + (-22 * -1 + 5w * -1)
-9 + 12w = 7w + -2 + (22 + -5w)

Reorder the terms:
-9 + 12w = -2 + 22 + 7w + -5w

Combine like terms: -2 + 22 = 20
-9 + 12w = 20 + 7w + -5w

Combine like terms: 7w + -5w = 2w
-9 + 12w = 20 + 2w

Solving
-9 + 12w = 20 + 2w

Solving for variable 'w'.

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

Add '-2w' to each side of the equation.
-9 + 12w + -2w = 20 + 2w + -2w

Combine like terms: 12w + -2w = 10w
-9 + 10w = 20 + 2w + -2w

Combine like terms: 2w + -2w = 0
-9 + 10w = 20 + 0
-9 + 10w = 20

Add '9' to each side of the equation.
-9 + 9 + 10w = 20 + 9

Combine like terms: -9 + 9 = 0
0 + 10w = 20 + 9
10w = 20 + 9

Combine like terms: 20 + 9 = 29
10w = 29

Divide each side by '10'.
w = 2.9

Simplifying
w = 2.9

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