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

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


Simplifying
3(-1w + 7) = -1(9 + -3w)

Reorder the terms:
3(7 + -1w) = -1(9 + -3w)
(7 * 3 + -1w * 3) = -1(9 + -3w)
(21 + -3w) = -1(9 + -3w)
21 + -3w = (9 * -1 + -3w * -1)
21 + -3w = (-9 + 3w)

Solving
21 + -3w = -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.
21 + -3w + -3w = -9 + 3w + -3w

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

Combine like terms: 3w + -3w = 0
21 + -6w = -9 + 0
21 + -6w = -9

Add '-21' to each side of the equation.
21 + -21 + -6w = -9 + -21

Combine like terms: 21 + -21 = 0
0 + -6w = -9 + -21
-6w = -9 + -21

Combine like terms: -9 + -21 = -30
-6w = -30

Divide each side by '-6'.
w = 5

Simplifying
w = 5

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