1.25*(x+1)=(x-1)

Solution for 1.25*(x+1)=(x-1) equation:

Simplifying
1.25(x + 1) = (x + -1)

Reorder the terms:
1.25(1 + x) = (x + -1)
(1 * 1.25 + x * 1.25) = (x + -1)
(1.25 + 1.25x) = (x + -1)

Reorder the terms:
1.25 + 1.25x = (-1 + x)

Remove parenthesis around (-1 + x)
1.25 + 1.25x = -1 + x

Solving
1.25 + 1.25x = -1 + x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
1.25 + 1.25x + -1x = -1 + x + -1x

Combine like terms: 1.25x + -1x = 0.25x
1.25 + 0.25x = -1 + x + -1x

Combine like terms: x + -1x = 0
1.25 + 0.25x = -1 + 0
1.25 + 0.25x = -1

Add '-1.25' to each side of the equation.
1.25 + -1.25 + 0.25x = -1 + -1.25

Combine like terms: 1.25 + -1.25 = 0.00
0.00 + 0.25x = -1 + -1.25
0.25x = -1 + -1.25

Combine like terms: -1 + -1.25 = -2.25
0.25x = -2.25

Divide each side by '0.25'.
x = -9

Simplifying
x = -9