24=2w-21

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Solution for 24=2w-21 equation:


Simplifying
24 = 2w + -21

Reorder the terms:
24 = -21 + 2w

Solving
24 = -21 + 2w

Solving for variable 'w'.

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

Add '-2w' to each side of the equation.
24 + -2w = -21 + 2w + -2w

Combine like terms: 2w + -2w = 0
24 + -2w = -21 + 0
24 + -2w = -21

Add '-24' to each side of the equation.
24 + -24 + -2w = -21 + -24

Combine like terms: 24 + -24 = 0
0 + -2w = -21 + -24
-2w = -21 + -24

Combine like terms: -21 + -24 = -45
-2w = -45

Divide each side by '-2'.
w = 22.5

Simplifying
w = 22.5

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