-9=-5u+2(u+3)

Solution for -9=-5u+2(u+3) equation:

Simplifying
-9 = -5u + 2(u + 3)

Reorder the terms:
-9 = -5u + 2(3 + u)
-9 = -5u + (3 * 2 + u * 2)
-9 = -5u + (6 + 2u)

Reorder the terms:
-9 = 6 + -5u + 2u

Combine like terms: -5u + 2u = -3u
-9 = 6 + -3u

Solving
-9 = 6 + -3u

Solving for variable 'u'.

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

Add '3u' to each side of the equation.
-9 + 3u = 6 + -3u + 3u

Combine like terms: -3u + 3u = 0
-9 + 3u = 6 + 0
-9 + 3u = 6

Add '9' to each side of the equation.
-9 + 9 + 3u = 6 + 9

Combine like terms: -9 + 9 = 0
0 + 3u = 6 + 9
3u = 6 + 9

Combine like terms: 6 + 9 = 15
3u = 15

Divide each side by '3'.
u = 5

Simplifying
u = 5