-8u+6=-9u

Solution for -8u+6=-9u equation:

Simplifying
-8u + 6 = -9u

Reorder the terms:
6 + -8u = -9u

Solving
6 + -8u = -9u

Solving for variable 'u'.

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

Add '9u' to each side of the equation.
6 + -8u + 9u = -9u + 9u

Combine like terms: -8u + 9u = 1u
6 + 1u = -9u + 9u

Combine like terms: -9u + 9u = 0
6 + 1u = 0

Add '-6' to each side of the equation.
6 + -6 + 1u = 0 + -6

Combine like terms: 6 + -6 = 0
0 + 1u = 0 + -6
1u = 0 + -6

Combine like terms: 0 + -6 = -6
1u = -6

Divide each side by '1'.
u = -6

Simplifying
u = -6