-9=4(w+3)-7w

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Solution for -9=4(w+3)-7w equation:


Simplifying
-9 = 4(w + 3) + -7w

Reorder the terms:
-9 = 4(3 + w) + -7w
-9 = (3 * 4 + w * 4) + -7w
-9 = (12 + 4w) + -7w

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

Solving
-9 = 12 + -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.
-9 + 3w = 12 + -3w + 3w

Combine like terms: -3w + 3w = 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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