P+a+b=c

Solution for P+a+b=c equation:

Simplifying
P + a + b = c

Solving
P + a + b = c

Solving for variable 'P'.

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

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

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

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

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

Simplifying
P = -1a + -1b + c