A=(x+1)+(x-3)

Solution for A=(x+1)+(x-3) equation:

Simplifying
A = (x + 1) + (x + -3)

Reorder the terms:
A = (1 + x) + (x + -3)

Remove parenthesis around (1 + x)
A = 1 + x + (x + -3)

Reorder the terms:
A = 1 + x + (-3 + x)

Remove parenthesis around (-3 + x)
A = 1 + x + -3 + x

Reorder the terms:
A = 1 + -3 + x + x

Combine like terms: 1 + -3 = -2
A = -2 + x + x

Combine like terms: x + x = 2x
A = -2 + 2x

Solving
A = -2 + 2x

Solving for variable 'A'.

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

Simplifying
A = -2 + 2x