W+4=21

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Solution for W+4=21 equation: 


Simplifying
W + 4 = 21

Reorder the terms:
4 + W = 21

Solving
4 + W = 21

Solving for variable 'W'.

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

Add '-4' to each side of the equation.
4 + -4 + W = 21 + -4

Combine like terms: 4 + -4 = 0
0 + W = 21 + -4
W = 21 + -4

Combine like terms: 21 + -4 = 17
W = 17

Simplifying
W = 17

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