# How do you solve system of equations #y = x+1# and #y = 2x -1#?

##### 2 Answers

Mar 29, 2015

x=2; y=3

Substitute y= x+1 from the first equation into the second equation. it would become x+1= 2x-1. Now add 1 on both sides and also subtract x from both sides. It would become 2=x. that is x=2. Now in the 1st equation, plugin x=2, to get y= 2+1 =3.

Mar 29, 2015

subtract equation 1 from equation 2.

equation 2 - equation 1

put

in equation 1:

OR

in equation 2:

Hence