(0.25)(x-1)=10

Solution for (0.25)(x-1)=10 equation:

Simplifying
(0.25)(x + -1) = 10

Reorder the terms:
0.25(-1 + x) = 10
(-1 * 0.25 + x * 0.25) = 10
(-0.25 + 0.25x) = 10

Solving
-0.25 + 0.25x = 10

Solving for variable 'x'.

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

Add '0.25' to each side of the equation.
-0.25 + 0.25 + 0.25x = 10 + 0.25

Combine like terms: -0.25 + 0.25 = 0.00
0.00 + 0.25x = 10 + 0.25
0.25x = 10 + 0.25

Combine like terms: 10 + 0.25 = 10.25
0.25x = 10.25

Divide each side by '0.25'.
x = 41

Simplifying
x = 41