P+P+P+-P+-6=0

Solution for P+P+P+-P+-6=0 equation:

Simplifying
P + P + P + -1P + -6 = 0

Reorder the terms:
-6 + P + P + P + -1P = 0

Combine like terms: P + P = 2P
-6 + 2P + P + -1P = 0

Combine like terms: 2P + P = 3P
-6 + 3P + -1P = 0

Combine like terms: 3P + -1P = 2P
-6 + 2P = 0

Solving
-6 + 2P = 0

Solving for variable 'P'.

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

Add '6' to each side of the equation.
-6 + 6 + 2P = 0 + 6

Combine like terms: -6 + 6 = 0
0 + 2P = 0 + 6
2P = 0 + 6

Combine like terms: 0 + 6 = 6
2P = 6

Divide each side by '2'.
P = 3

Simplifying
P = 3