3(w+4)-4(2w-2)=7

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Solution for 3(w+4)-4(2w-2)=7 equation:


Simplifying
3(w + 4) + -4(2w + -2) = 7

Reorder the terms:
3(4 + w) + -4(2w + -2) = 7
(4 * 3 + w * 3) + -4(2w + -2) = 7
(12 + 3w) + -4(2w + -2) = 7

Reorder the terms:
12 + 3w + -4(-2 + 2w) = 7
12 + 3w + (-2 * -4 + 2w * -4) = 7
12 + 3w + (8 + -8w) = 7

Reorder the terms:
12 + 8 + 3w + -8w = 7

Combine like terms: 12 + 8 = 20
20 + 3w + -8w = 7

Combine like terms: 3w + -8w = -5w
20 + -5w = 7

Solving
20 + -5w = 7

Solving for variable 'w'.

Move all terms containing w to the left, all other terms to the right.

Add '-20' to each side of the equation.
20 + -20 + -5w = 7 + -20

Combine like terms: 20 + -20 = 0
0 + -5w = 7 + -20
-5w = 7 + -20

Combine like terms: 7 + -20 = -13
-5w = -13

Divide each side by '-5'.
w = 2.6

Simplifying
w = 2.6

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