6u-9=15

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Solution for 6u-9=15 equation: 


Simplifying
6u + -9 = 15

Reorder the terms:
-9 + 6u = 15

Solving
-9 + 6u = 15

Solving for variable 'u'.

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

Add '9' to each side of the equation.
-9 + 9 + 6u = 15 + 9

Combine like terms: -9 + 9 = 0
0 + 6u = 15 + 9
6u = 15 + 9

Combine like terms: 15 + 9 = 24
6u = 24

Divide each side by '6'.
u = 4

Simplifying
u = 4

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