Question

PLEASE HELP ME

graph the system of equations below on a piece of paper what is the solution
y=x-1
y=3x+1
A) (1,-2)
B) (-1,-2)
C) (2,1)
D) (-1,-1)

Answer 1

B)
`(-1, -2)`

Explanation:

3x + 1 = x - 1

-3x - 3x

___________

1 = −2x - 1

+1 + 1

_________

2 = −2x

_ ___

−2 −2

`x = -1` [Plug this back into both equations above to get the y-coordinate of -2];
`-2 = y`

I am joyous to assist you anytime.