3(7-2w)=3(w+5)-84

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Solution for 3(7-2w)=3(w+5)-84 equation:


Simplifying
3(7 + -2w) = 3(w + 5) + -84
(7 * 3 + -2w * 3) = 3(w + 5) + -84
(21 + -6w) = 3(w + 5) + -84

Reorder the terms:
21 + -6w = 3(5 + w) + -84
21 + -6w = (5 * 3 + w * 3) + -84
21 + -6w = (15 + 3w) + -84

Reorder the terms:
21 + -6w = 15 + -84 + 3w

Combine like terms: 15 + -84 = -69
21 + -6w = -69 + 3w

Solving
21 + -6w = -69 + 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 + -6w + -3w = -69 + 3w + -3w

Combine like terms: -6w + -3w = -9w
21 + -9w = -69 + 3w + -3w

Combine like terms: 3w + -3w = 0
21 + -9w = -69 + 0
21 + -9w = -69

Add '-21' to each side of the equation.
21 + -21 + -9w = -69 + -21

Combine like terms: 21 + -21 = 0
0 + -9w = -69 + -21
-9w = -69 + -21

Combine like terms: -69 + -21 = -90
-9w = -90

Divide each side by '-9'.
w = 10

Simplifying
w = 10

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