3(5w+4)-4(3w-2)=7

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Solution for 3(5w+4)-4(3w-2)=7 equation:


Simplifying
3(5w + 4) + -4(3w + -2) = 7

Reorder the terms:
3(4 + 5w) + -4(3w + -2) = 7
(4 * 3 + 5w * 3) + -4(3w + -2) = 7
(12 + 15w) + -4(3w + -2) = 7

Reorder the terms:
12 + 15w + -4(-2 + 3w) = 7
12 + 15w + (-2 * -4 + 3w * -4) = 7
12 + 15w + (8 + -12w) = 7

Reorder the terms:
12 + 8 + 15w + -12w = 7

Combine like terms: 12 + 8 = 20
20 + 15w + -12w = 7

Combine like terms: 15w + -12w = 3w
20 + 3w = 7

Solving
20 + 3w = 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 + 3w = 7 + -20

Combine like terms: 20 + -20 = 0
0 + 3w = 7 + -20
3w = 7 + -20

Combine like terms: 7 + -20 = -13
3w = -13

Divide each side by '3'.
w = -4.333333333

Simplifying
w = -4.333333333

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