3(p+-16)+9=-42

Solution for 3(p+-16)+9=-42 equation:

Simplifying
3(p + -16) + 9 = -42

Reorder the terms:
3(-16 + p) + 9 = -42
(-16 * 3 + p * 3) + 9 = -42
(-48 + 3p) + 9 = -42

Reorder the terms:
-48 + 9 + 3p = -42

Combine like terms: -48 + 9 = -39
-39 + 3p = -42

Solving
-39 + 3p = -42

Solving for variable 'p'.

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

Add '39' to each side of the equation.
-39 + 39 + 3p = -42 + 39

Combine like terms: -39 + 39 = 0
0 + 3p = -42 + 39
3p = -42 + 39

Combine like terms: -42 + 39 = -3
3p = -3

Divide each side by '3'.
p = -1

Simplifying
p = -1