3+1+u=y+1+4

Solution for 3+1+u=y+1+4 equation:

Simplifying
3 + 1 + u = y + 1 + 4

Combine like terms: 3 + 1 = 4
4 + u = y + 1 + 4

Reorder the terms:
4 + u = 1 + 4 + y

Combine like terms: 1 + 4 = 5
4 + u = 5 + y

Solving
4 + u = 5 + y

Solving for variable 'u'.

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

Add '-4' to each side of the equation.
4 + -4 + u = 5 + -4 + y

Combine like terms: 4 + -4 = 0
0 + u = 5 + -4 + y
u = 5 + -4 + y

Combine like terms: 5 + -4 = 1
u = 1 + y

Simplifying
u = 1 + y