(x+1)(1+1)-1=

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

Simplifying
(x + 1)(1 + 1) + -1 = 0

Reorder the terms:
(1 + x)(1 + 1) + -1 = 0

Combine like terms: 1 + 1 = 2
(1 + x)(2) + -1 = 0

Reorder the terms for easier multiplication:
2(1 + x) + -1 = 0
(1 * 2 + x * 2) + -1 = 0
(2 + 2x) + -1 = 0

Reorder the terms:
2 + -1 + 2x = 0

Combine like terms: 2 + -1 = 1
1 + 2x = 0

Solving
1 + 2x = 0

Solving for variable 'x'.

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

Add '-1' to each side of the equation.
1 + -1 + 2x = 0 + -1

Combine like terms: 1 + -1 = 0
0 + 2x = 0 + -1
2x = 0 + -1

Combine like terms: 0 + -1 = -1
2x = -1

Divide each side by '2'.
x = -0.5

Simplifying
x = -0.5