6u=7u-9

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Solution for 6u=7u-9 equation: 


Simplifying
6u = 7u + -9

Reorder the terms:
6u = -9 + 7u

Solving
6u = -9 + 7u

Solving for variable 'u'.

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

Add '-7u' to each side of the equation.
6u + -7u = -9 + 7u + -7u

Combine like terms: 6u + -7u = -1u
-1u = -9 + 7u + -7u

Combine like terms: 7u + -7u = 0
-1u = -9 + 0
-1u = -9

Divide each side by '-1'.
u = 9

Simplifying
u = 9

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