6=9u-11u-6

Solution for 6=9u-11u-6 equation:

Simplifying
6 = 9u + -11u + -6

Reorder the terms:
6 = -6 + 9u + -11u

Combine like terms: 9u + -11u = -2u
6 = -6 + -2u

Solving
6 = -6 + -2u

Solving for variable 'u'.

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

Add '2u' to each side of the equation.
6 + 2u = -6 + -2u + 2u

Combine like terms: -2u + 2u = 0
6 + 2u = -6 + 0
6 + 2u = -6

Add '-6' to each side of the equation.
6 + -6 + 2u = -6 + -6

Combine like terms: 6 + -6 = 0
0 + 2u = -6 + -6
2u = -6 + -6

Combine like terms: -6 + -6 = -12
2u = -12

Divide each side by '2'.
u = -6

Simplifying
u = -6