21-3w=4w

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Solution for 21-3w=4w equation:


Simplifying
21 + -3w = 4w

Solving
21 + -3w = 4w

Solving for variable 'w'.

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

Add '-4w' to each side of the equation.
21 + -3w + -4w = 4w + -4w

Combine like terms: -3w + -4w = -7w
21 + -7w = 4w + -4w

Combine like terms: 4w + -4w = 0
21 + -7w = 0

Add '-21' to each side of the equation.
21 + -21 + -7w = 0 + -21

Combine like terms: 21 + -21 = 0
0 + -7w = 0 + -21
-7w = 0 + -21

Combine like terms: 0 + -21 = -21
-7w = -21

Divide each side by '-7'.
w = 3

Simplifying
w = 3

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