-3(w-4)-(w+5)=18

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Solution for -3(w-4)-(w+5)=18 equation:


Simplifying
-3(w + -4) + -1(w + 5) = 18

Reorder the terms:
-3(-4 + w) + -1(w + 5) = 18
(-4 * -3 + w * -3) + -1(w + 5) = 18
(12 + -3w) + -1(w + 5) = 18

Reorder the terms:
12 + -3w + -1(5 + w) = 18
12 + -3w + (5 * -1 + w * -1) = 18
12 + -3w + (-5 + -1w) = 18

Reorder the terms:
12 + -5 + -3w + -1w = 18

Combine like terms: 12 + -5 = 7
7 + -3w + -1w = 18

Combine like terms: -3w + -1w = -4w
7 + -4w = 18

Solving
7 + -4w = 18

Solving for variable 'w'.

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

Add '-7' to each side of the equation.
7 + -7 + -4w = 18 + -7

Combine like terms: 7 + -7 = 0
0 + -4w = 18 + -7
-4w = 18 + -7

Combine like terms: 18 + -7 = 11
-4w = 11

Divide each side by '-4'.
w = -2.75

Simplifying
w = -2.75

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