9w+8=21w-4

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Solution for 9w+8=21w-4 equation:


Simplifying
9w + 8 = 21w + -4

Reorder the terms:
8 + 9w = 21w + -4

Reorder the terms:
8 + 9w = -4 + 21w

Solving
8 + 9w = -4 + 21w

Solving for variable 'w'.

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

Add '-21w' to each side of the equation.
8 + 9w + -21w = -4 + 21w + -21w

Combine like terms: 9w + -21w = -12w
8 + -12w = -4 + 21w + -21w

Combine like terms: 21w + -21w = 0
8 + -12w = -4 + 0
8 + -12w = -4

Add '-8' to each side of the equation.
8 + -8 + -12w = -4 + -8

Combine like terms: 8 + -8 = 0
0 + -12w = -4 + -8
-12w = -4 + -8

Combine like terms: -4 + -8 = -12
-12w = -12

Divide each side by '-12'.
w = 1

Simplifying
w = 1

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