9u-13=-18

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Solution for 9u-13=-18 equation: 


Simplifying
9u + -13 = -18

Reorder the terms:
-13 + 9u = -18

Solving
-13 + 9u = -18

Solving for variable 'u'.

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

Add '13' to each side of the equation.
-13 + 13 + 9u = -18 + 13

Combine like terms: -13 + 13 = 0
0 + 9u = -18 + 13
9u = -18 + 13

Combine like terms: -18 + 13 = -5
9u = -5

Divide each side by '9'.
u = -0.5555555556

Simplifying
u = -0.5555555556

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