18+7p-12+5p-9p=

Solution for 18+7p-12+5p-9p= equation:

Simplifying
18 + 7p + -12 + 5p + -9p = 0

Reorder the terms:
18 + -12 + 7p + 5p + -9p = 0

Combine like terms: 18 + -12 = 6
6 + 7p + 5p + -9p = 0

Combine like terms: 7p + 5p = 12p
6 + 12p + -9p = 0

Combine like terms: 12p + -9p = 3p
6 + 3p = 0

Solving
6 + 3p = 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 + 3p = 0 + -6

Combine like terms: 6 + -6 = 0
0 + 3p = 0 + -6
3p = 0 + -6

Combine like terms: 0 + -6 = -6
3p = -6

Divide each side by '3'.
p = -2

Simplifying
p = -2