-3(w+7)=3w-45

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Solution for -3(w+7)=3w-45 equation:


Simplifying
-3(w + 7) = 3w + -45

Reorder the terms:
-3(7 + w) = 3w + -45
(7 * -3 + w * -3) = 3w + -45
(-21 + -3w) = 3w + -45

Reorder the terms:
-21 + -3w = -45 + 3w

Solving
-21 + -3w = -45 + 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 = -45 + 3w + -3w

Combine like terms: -3w + -3w = -6w
-21 + -6w = -45 + 3w + -3w

Combine like terms: 3w + -3w = 0
-21 + -6w = -45 + 0
-21 + -6w = -45

Add '21' to each side of the equation.
-21 + 21 + -6w = -45 + 21

Combine like terms: -21 + 21 = 0
0 + -6w = -45 + 21
-6w = -45 + 21

Combine like terms: -45 + 21 = -24
-6w = -24

Divide each side by '-6'.
w = 4

Simplifying
w = 4

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