9-8w=21-2w

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Solution for 9-8w=21-2w equation:


Simplifying
9 + -8w = 21 + -2w

Solving
9 + -8w = 21 + -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 + -8w + 2w = 21 + -2w + 2w

Combine like terms: -8w + 2w = -6w
9 + -6w = 21 + -2w + 2w

Combine like terms: -2w + 2w = 0
9 + -6w = 21 + 0
9 + -6w = 21

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

Combine like terms: 9 + -9 = 0
0 + -6w = 21 + -9
-6w = 21 + -9

Combine like terms: 21 + -9 = 12
-6w = 12

Divide each side by '-6'.
w = -2

Simplifying
w = -2

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