-(2+u)+3=10

Solution for -(2+u)+3=10 equation:

Simplifying
-1(2 + u) + 3 = 10
(2 * -1 + u * -1) + 3 = 10
(-2 + -1u) + 3 = 10

Reorder the terms:
-2 + 3 + -1u = 10

Combine like terms: -2 + 3 = 1
1 + -1u = 10

Solving
1 + -1u = 10

Solving for variable 'u'.

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

Add '-1' to each side of the equation.
1 + -1 + -1u = 10 + -1

Combine like terms: 1 + -1 = 0
0 + -1u = 10 + -1
-1u = 10 + -1

Combine like terms: 10 + -1 = 9
-1u = 9

Divide each side by '-1'.
u = -9

Simplifying
u = -9