-1=-5u

Solution for -1=-5u equation:

Simplifying
-1 = -5u

Solving
-1 = -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 + 5u = -5u + 5u

Combine like terms: -5u + 5u = 0
-1 + 5u = 0

Add '1' to each side of the equation.
-1 + 1 + 5u = 0 + 1

Combine like terms: -1 + 1 = 0
0 + 5u = 0 + 1
5u = 0 + 1

Combine like terms: 0 + 1 = 1
5u = 1

Divide each side by '5'.
u = 0.2

Simplifying
u = 0.2