9w+1-7w-5=-20

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Solution for 9w+1-7w-5=-20 equation:


Simplifying
9w + 1 + -7w + -5 = -20

Reorder the terms:
1 + -5 + 9w + -7w = -20

Combine like terms: 1 + -5 = -4
-4 + 9w + -7w = -20

Combine like terms: 9w + -7w = 2w
-4 + 2w = -20

Solving
-4 + 2w = -20

Solving for variable 'w'.

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

Add '4' to each side of the equation.
-4 + 4 + 2w = -20 + 4

Combine like terms: -4 + 4 = 0
0 + 2w = -20 + 4
2w = -20 + 4

Combine like terms: -20 + 4 = -16
2w = -16

Divide each side by '2'.
w = -8

Simplifying
w = -8

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