3-w=3w-21

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Solution for 3-w=3w-21 equation:


Simplifying
3 + -1w = 3w + -21

Reorder the terms:
3 + -1w = -21 + 3w

Solving
3 + -1w = -21 + 3w

Solving for variable 'w'.

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

Add '-3w' to each side of the equation.
3 + -1w + -3w = -21 + 3w + -3w

Combine like terms: -1w + -3w = -4w
3 + -4w = -21 + 3w + -3w

Combine like terms: 3w + -3w = 0
3 + -4w = -21 + 0
3 + -4w = -21

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

Combine like terms: 3 + -3 = 0
0 + -4w = -21 + -3
-4w = -21 + -3

Combine like terms: -21 + -3 = -24
-4w = -24

Divide each side by '-4'.
w = 6

Simplifying
w = 6

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