w+13=21

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Solution for w+13=21 equation: 


Simplifying
w + 13 = 21

Reorder the terms:
13 + w = 21

Solving
13 + w = 21

Solving for variable 'w'.

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

Add '-13' to each side of the equation.
13 + -13 + w = 21 + -13

Combine like terms: 13 + -13 = 0
0 + w = 21 + -13
w = 21 + -13

Combine like terms: 21 + -13 = 8
w = 8

Simplifying
w = 8

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