# How do you solve -10p+9p=12?

Aug 26, 2017

See a solution process below:

#### Explanation:

First, combine like terms on the left side of the equation:

$- 10 \textcolor{red}{p} + 9 \textcolor{red}{p} = 12$

$\left(- 10 + 9\right) \textcolor{red}{p} = 12$

$- 1 \textcolor{red}{p} = 12$

$- p = 12$

Now, multiply each side of the equation by $\textcolor{red}{- 1}$ to solve for $p$ while keeping the equation balanced:

$\textcolor{red}{- 1} \times - p = \textcolor{red}{- 1} \times 12$

$p = - 12$