2w-21=-3(w-8)

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Solution for 2w-21=-3(w-8) equation:


Simplifying
2w + -21 = -3(w + -8)

Reorder the terms:
-21 + 2w = -3(w + -8)

Reorder the terms:
-21 + 2w = -3(-8 + w)
-21 + 2w = (-8 * -3 + w * -3)
-21 + 2w = (24 + -3w)

Solving
-21 + 2w = 24 + -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 + 2w + 3w = 24 + -3w + 3w

Combine like terms: 2w + 3w = 5w
-21 + 5w = 24 + -3w + 3w

Combine like terms: -3w + 3w = 0
-21 + 5w = 24 + 0
-21 + 5w = 24

Add '21' to each side of the equation.
-21 + 21 + 5w = 24 + 21

Combine like terms: -21 + 21 = 0
0 + 5w = 24 + 21
5w = 24 + 21

Combine like terms: 24 + 21 = 45
5w = 45

Divide each side by '5'.
w = 9

Simplifying
w = 9

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