# How do you solve #y=2x+9# and #y=9x +10# using substitution?

##### 1 Answer

Apr 26, 2018

#### Explanation:

Take one y value and substitute it as the y value in the other equation.

Let's use

Subtract 2x from both sides, then subtract 10 from both sides.

Divide both sides by 7

Now apply your new x value to the first equation,