10+3w-9w=-20

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Solution for 10+3w-9w=-20 equation: 


Simplifying
10 + 3w + -9w = -20

Combine like terms: 3w + -9w = -6w
10 + -6w = -20

Solving
10 + -6w = -20

Solving for variable 'w'.

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

Add '-10' to each side of the equation.
10 + -10 + -6w = -20 + -10

Combine like terms: 10 + -10 = 0
0 + -6w = -20 + -10
-6w = -20 + -10

Combine like terms: -20 + -10 = -30
-6w = -30

Divide each side by '-6'.
w = 5

Simplifying
w = 5

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