B+P+A=C

Solution for B+P+A=C equation:

Simplifying
B + P + A = C

Reorder the terms:
A + B + P = C

Solving
A + B + P = C

Solving for variable 'A'.

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

Add '-1B' to each side of the equation.
A + B + -1B + P = -1B + C

Combine like terms: B + -1B = 0
A + 0 + P = -1B + C
A + P = -1B + C

Add '-1P' to each side of the equation.
A + P + -1P = -1B + C + -1P

Combine like terms: P + -1P = 0
A + 0 = -1B + C + -1P
A = -1B + C + -1P

Simplifying
A = -1B + C + -1P