# How do you solve the system of equations #2x+8y=6# and #-5x-20y=-15#?

##### 2 Answers

This system of equation doesn't have any solutions.

#### Explanation:

Let's simplify these equations: divide the first one by

Now, using any of the equations, we must express one variable by the other, let's say

Using this we solve the other equation:

We got

The y- values will depend on the x chosen.

#### Explanation:

There are different options available to solve the equations.

To be able to use substitution, a single variable in one of the equations is a useful indicator

Make x the subject of the equation:

Replace