9+5u+6u-7-8u+4=

Solution for 9+5u+6u-7-8u+4= equation:

Simplifying
9 + 5u + 6u + -7 + -8u + 4 = 0

Reorder the terms:
9 + -7 + 4 + 5u + 6u + -8u = 0

Combine like terms: 9 + -7 = 2
2 + 4 + 5u + 6u + -8u = 0

Combine like terms: 2 + 4 = 6
6 + 5u + 6u + -8u = 0

Combine like terms: 5u + 6u = 11u
6 + 11u + -8u = 0

Combine like terms: 11u + -8u = 3u
6 + 3u = 0

Solving
6 + 3u = 0

Solving for variable 'u'.

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

Add '-6' to each side of the equation.
6 + -6 + 3u = 0 + -6

Combine like terms: 6 + -6 = 0
0 + 3u = 0 + -6
3u = 0 + -6

Combine like terms: 0 + -6 = -6
3u = -6

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

Simplifying
u = -2