21-3w=3

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Solution for 21-3w=3 equation: 


Simplifying
21 + -3w = 3

Solving
21 + -3w = 3

Solving for variable 'w'.

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

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

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

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

Divide each side by '-3'.
w = 6

Simplifying
w = 6

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