9=7w-4w

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Solution for 9=7w-4w equation:


Simplifying
9 = 7w + -4w

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

Solving
9 = 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 = 3w + -3w

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

Add '-9' to each side of the equation.
9 + -9 + -3w = 0 + -9

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

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

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

Simplifying
w = 3

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