(a+1)(b+1)=0

Solution for (a+1)(b+1)=0 equation:

Simplifying
(a + 1)(b + 1) = 0

Reorder the terms:
(1 + a)(b + 1) = 0

Reorder the terms:
(1 + a)(1 + b) = 0

Multiply (1 + a) * (1 + b)
(1(1 + b) + a(1 + b)) = 0
((1 * 1 + b * 1) + a(1 + b)) = 0
((1 + 1b) + a(1 + b)) = 0
(1 + 1b + (1 * a + b * a)) = 0
(1 + 1b + (1a + ab)) = 0

Reorder the terms:
(1 + 1a + ab + 1b) = 0
(1 + 1a + ab + 1b) = 0

Solving
1 + 1a + ab + 1b = 0

Solving for variable 'a'.

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

Add '-1' to each side of the equation.
1 + 1a + ab + -1 + 1b = 0 + -1

Reorder the terms:
1 + -1 + 1a + ab + 1b = 0 + -1

Combine like terms: 1 + -1 = 0
0 + 1a + ab + 1b = 0 + -1
1a + ab + 1b = 0 + -1

Combine like terms: 0 + -1 = -1
1a + ab + 1b = -1

Add '-1b' to each side of the equation.
1a + ab + 1b + -1b = -1 + -1b

Combine like terms: 1b + -1b = 0
1a + ab + 0 = -1 + -1b
1a + ab = -1 + -1b

Reorder the terms:
1 + 1a + ab + b = -1 + -1b + 1 + b

Reorder the terms:
1 + 1a + ab + b = -1 + 1 + -1b + b

Combine like terms: -1 + 1 = 0
1 + 1a + ab + b = 0 + -1b + b
1 + 1a + ab + b = -1b + b

Combine like terms: -1b + b = 0
1 + 1a + ab + b = 0

The solution to this equation could not be determined.