12-6w-3=7w-21-3w

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Solution for 12-6w-3=7w-21-3w equation:


Simplifying
12 + -6w + -3 = 7w + -21 + -3w

Reorder the terms:
12 + -3 + -6w = 7w + -21 + -3w

Combine like terms: 12 + -3 = 9
9 + -6w = 7w + -21 + -3w

Reorder the terms:
9 + -6w = -21 + 7w + -3w

Combine like terms: 7w + -3w = 4w
9 + -6w = -21 + 4w

Solving
9 + -6w = -21 + 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.
9 + -6w + -4w = -21 + 4w + -4w

Combine like terms: -6w + -4w = -10w
9 + -10w = -21 + 4w + -4w

Combine like terms: 4w + -4w = 0
9 + -10w = -21 + 0
9 + -10w = -21

Add '-9' to each side of the equation.
9 + -9 + -10w = -21 + -9

Combine like terms: 9 + -9 = 0
0 + -10w = -21 + -9
-10w = -21 + -9

Combine like terms: -21 + -9 = -30
-10w = -30

Divide each side by '-10'.
w = 3

Simplifying
w = 3

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