2w-8=21

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Solution for 2w-8=21 equation: 


Simplifying
2w + -8 = 21

Reorder the terms:
-8 + 2w = 21

Solving
-8 + 2w = 21

Solving for variable 'w'.

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

Add '8' to each side of the equation.
-8 + 8 + 2w = 21 + 8

Combine like terms: -8 + 8 = 0
0 + 2w = 21 + 8
2w = 21 + 8

Combine like terms: 21 + 8 = 29
2w = 29

Divide each side by '2'.
w = 14.5

Simplifying
w = 14.5

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