a-b+1=c

Solution for a-b+1=c equation:

Simplifying
a + -1b + 1 = c

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

Solving
1 + a + -1b = c

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 + a + -1 + -1b = -1 + c

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

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

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

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

Simplifying
a = -1 + b + c