Systems of equations.

Y = - 3x+1

Y=x-3 How do i start it

You can set both equations together

y = - 3x + 1

and y = x - 3

we can replace the y of one equation with the other side

-3x+1 = x-3

add 3x on both sides

1 = x + 3x - 3

add 3 on both sides

1 + 3 = x + 3x

simplify

4 = 4x

divide by 4 on both sides

x = 1

y = x - 3

y = 1 - 3

y = 2

So the solution is: (1,2)