# How do you solve the system x + y = 5 and y = 3?

May 18, 2018

See a solution process below:

#### Explanation:

Substitute $3$ (from $y = 3$) for $y$ in the first equation and solve for $x$:

$x + y = 5$ becomes:

$x + 3 = 5$

$x + 3 - \textcolor{red}{3} = 5 - \textcolor{red}{3}$

$x + 0 = 2$

$x = 2$

The Solution Is:

$x = 2$ and $y = 3$

Or

$\left(2 , 3\right)$