9w-21=6w+18

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Solution for 9w-21=6w+18 equation:


Simplifying
9w + -21 = 6w + 18

Reorder the terms:
-21 + 9w = 6w + 18

Reorder the terms:
-21 + 9w = 18 + 6w

Solving
-21 + 9w = 18 + 6w

Solving for variable 'w'.

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

Add '-6w' to each side of the equation.
-21 + 9w + -6w = 18 + 6w + -6w

Combine like terms: 9w + -6w = 3w
-21 + 3w = 18 + 6w + -6w

Combine like terms: 6w + -6w = 0
-21 + 3w = 18 + 0
-21 + 3w = 18

Add '21' to each side of the equation.
-21 + 21 + 3w = 18 + 21

Combine like terms: -21 + 21 = 0
0 + 3w = 18 + 21
3w = 18 + 21

Combine like terms: 18 + 21 = 39
3w = 39

Divide each side by '3'.
w = 13

Simplifying
w = 13

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