# When the expression x-1 is substituted into the first equation for y, what is the resulting equation when given #3x-y=2, y=x-1#?

##### 1 Answer

Nov 29, 2016

Every step shown. As you become more confident with this type of question you will start to jump steps and become much faster at solving them.

#### Explanation:

Given:

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Using equation(1) substitute for

but

Add 1 to both sides

Divide both sides by 2

But