7w-9=4w+12

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Solution for 7w-9=4w+12 equation:


Simplifying
7w + -9 = 4w + 12

Reorder the terms:
-9 + 7w = 4w + 12

Reorder the terms:
-9 + 7w = 12 + 4w

Solving
-9 + 7w = 12 + 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 + 7w + -4w = 12 + 4w + -4w

Combine like terms: 7w + -4w = 3w
-9 + 3w = 12 + 4w + -4w

Combine like terms: 4w + -4w = 0
-9 + 3w = 12 + 0
-9 + 3w = 12

Add '9' to each side of the equation.
-9 + 9 + 3w = 12 + 9

Combine like terms: -9 + 9 = 0
0 + 3w = 12 + 9
3w = 12 + 9

Combine like terms: 12 + 9 = 21
3w = 21

Divide each side by '3'.
w = 7

Simplifying
w = 7

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