-7u+6=-9+8u

Solution for -7u+6=-9+8u equation:

Simplifying
-7u + 6 = -9 + 8u

Reorder the terms:
6 + -7u = -9 + 8u

Solving
6 + -7u = -9 + 8u

Solving for variable 'u'.

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

Add '-8u' to each side of the equation.
6 + -7u + -8u = -9 + 8u + -8u

Combine like terms: -7u + -8u = -15u
6 + -15u = -9 + 8u + -8u

Combine like terms: 8u + -8u = 0
6 + -15u = -9 + 0
6 + -15u = -9

Add '-6' to each side of the equation.
6 + -6 + -15u = -9 + -6

Combine like terms: 6 + -6 = 0
0 + -15u = -9 + -6
-15u = -9 + -6

Combine like terms: -9 + -6 = -15
-15u = -15

Divide each side by '-15'.
u = 1

Simplifying
u = 1