Ok, so we’re solving for p. Let’s take it step by step.
-10p = -7p + 9
• first, let’s combine like terms by adding 7p to both sides of the equation.
-3p = 9
• now, let’s divide each side by -3 to simplify the equation.
p = -3
• so, -10p = -7p + 9 simplified is p = -3 :)