-6-6u=-7u

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

Simplifying
-6 + -6u = -7u

Solving
-6 + -6u = -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.
-6 + -6u + 7u = -7u + 7u

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

Combine like terms: -7u + 7u = 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