4u-1=5u

Solution for 4u-1=5u equation:

Simplifying
4u + -1 = 5u

Reorder the terms:
-1 + 4u = 5u

Solving
-1 + 4u = 5u

Solving for variable 'u'.

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

Add '-5u' to each side of the equation.
-1 + 4u + -5u = 5u + -5u

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

Combine like terms: 5u + -5u = 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