2w-4w=-21

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Solution for 2w-4w=-21 equation: 


Simplifying
2w + -4w = -21

Combine like terms: 2w + -4w = -2w
-2w = -21

Solving
-2w = -21

Solving for variable 'w'.

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

Divide each side by '-2'.
w = 10.5

Simplifying
w = 10.5

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