5w-6+4w=21

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Solution for 5w-6+4w=21 equation: 


Simplifying
5w + -6 + 4w = 21

Reorder the terms:
-6 + 5w + 4w = 21

Combine like terms: 5w + 4w = 9w
-6 + 9w = 21

Solving
-6 + 9w = 21

Solving for variable 'w'.

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

Add '6' to each side of the equation.
-6 + 6 + 9w = 21 + 6

Combine like terms: -6 + 6 = 0
0 + 9w = 21 + 6
9w = 21 + 6

Combine like terms: 21 + 6 = 27
9w = 27

Divide each side by '9'.
w = 3

Simplifying
w = 3

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