# How do you solve x+ 9y = 5 and x = 3 - 9y?

Jul 21, 2015

There is no solution for the given pair of equations. They represent two parallel lines with no points in common.

#### Explanation:

Since $x = 3 - 9 y$
could be written as $x + 9 y = 3$

The given equations are equivalent to:
$\textcolor{w h i t e}{\text{XXXX}}$$\textcolor{b l u e}{x + 9 y} = 5$
and
$\textcolor{w h i t e}{\text{XXXX}}$$\textcolor{b l u e}{x + 9 y} = 3$

To be simultaneously true, it would be necessary for $5 = 3$