3+-2=u

Solution for 3+-2=u equation:

Simplifying
3 + -2 = u

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

Solving
1 = u

Solving for variable 'u'.

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

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

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

Add '-1' to each side of the equation.
1 + -1 + -1u = 0 + -1

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

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

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

Simplifying
u = 1