# How do you solve #2x + y = 5# and #y = 3x + 2# using substitution?

##### 2 Answers

#### Explanation:

Putting

or

or

or

or

By putting

we get

or

or

or

or

#### Explanation:

This type of question is particularly common when working with straight lines.

Note that there is a single

At the point where the two lines intersect, the

If

There are now two equations to find a value for y. If we get the same answer for each we will know our answers are correct.