-7u+6=-9u

Solution for -7u+6=-9u equation:

Simplifying
-7u + 6 = -9u

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

Solving
6 + -7u = -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 + -7u + 9u = -9u + 9u

Combine like terms: -7u + 9u = 2u
6 + 2u = -9u + 9u

Combine like terms: -9u + 9u = 0
6 + 2u = 0

Add '-6' to each side of the equation.
6 + -6 + 2u = 0 + -6

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

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

Divide each side by '2'.
u = -3

Simplifying
u = -3