Y=2x-4 Y=x-1 How do you solve this system of equations?

Question

Solve each system of equations

y=2x-4

y=x-1

how do u solve this?

can I have it step by step?

Answer 1

You need to solve for each value x and y.  These two equations provide the intersection of both whereby

 

y=2x-4  and  y=x-1

 

this gives us, by replacing y in the first equation with     x-1 = 2x-4

    subtract the left side x from the right side gives us      -1 = x - 4

                                              subtracting known values     x = 3

 

                     verfy the results gives us      2(3) - 4 = y

                                                                         2 = y

 

                                                  also          3 - 1 = y

                                                                       2 = y

 

so you wind up with x = 3  and y = 2