# How do you determine (5,2) is a solution to x+y=8?

Nov 28, 2016

$7$ does not equal $8$ therefore $\left(5 , 2\right)$ is not a solution for this equation.

#### Explanation:

Substitute $5$ for $x$ and $2$ for $y$ in the equation. If the result equals $8$ it is a solution. If it does not equal $8$ it is not a solution.

$5 + 2 = 8$

$7 = 8$

$7$ does not equal $8$ therefore $\left(5 , 2\right)$ is not a solution for this equation.