1+1=u

Solution for 1+1=u equation:

Simplifying
1 + 1 = u

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

Solving
2 = 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.
2 + -1u = u + -1u

Combine like terms: u + -1u = 0
2 + -1u = 0

Add '-2' to each side of the equation.
2 + -2 + -1u = 0 + -2

Combine like terms: 2 + -2 = 0
0 + -1u = 0 + -2
-1u = 0 + -2

Combine like terms: 0 + -2 = -2
-1u = -2

Divide each side by '-1'.
u = 2

Simplifying
u = 2