9-4w=-1

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Solution for 9-4w=-1 equation: 


Simplifying
9 + -4w = -1

Solving
9 + -4w = -1

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 + -4w = -1 + -9

Combine like terms: 9 + -9 = 0
0 + -4w = -1 + -9
-4w = -1 + -9

Combine like terms: -1 + -9 = -10
-4w = -10

Divide each side by '-4'.
w = 2.5

Simplifying
w = 2.5

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