8w-9=5w+21

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Solution for 8w-9=5w+21 equation:


Simplifying
8w + -9 = 5w + 21

Reorder the terms:
-9 + 8w = 5w + 21

Reorder the terms:
-9 + 8w = 21 + 5w

Solving
-9 + 8w = 21 + 5w

Solving for variable 'w'.

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

Add '-5w' to each side of the equation.
-9 + 8w + -5w = 21 + 5w + -5w

Combine like terms: 8w + -5w = 3w
-9 + 3w = 21 + 5w + -5w

Combine like terms: 5w + -5w = 0
-9 + 3w = 21 + 0
-9 + 3w = 21

Add '9' to each side of the equation.
-9 + 9 + 3w = 21 + 9

Combine like terms: -9 + 9 = 0
0 + 3w = 21 + 9
3w = 21 + 9

Combine like terms: 21 + 9 = 30
3w = 30

Divide each side by '3'.
w = 10

Simplifying
w = 10

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