-8w-9+6w=21

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Solution for -8w-9+6w=21 equation:


Simplifying
-8w + -9 + 6w = 21

Reorder the terms:
-9 + -8w + 6w = 21

Combine like terms: -8w + 6w = -2w
-9 + -2w = 21

Solving
-9 + -2w = 21

Solving for variable 'w'.

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

Add '9' to each side of the equation.
-9 + 9 + -2w = 21 + 9

Combine like terms: -9 + 9 = 0
0 + -2w = 21 + 9
-2w = 21 + 9

Combine like terms: 21 + 9 = 30
-2w = 30

Divide each side by '-2'.
w = -15

Simplifying
w = -15

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