Question

y = - 2x + 1...
y = - x + 5

Answer 1

(x,y)=(-4,9)

Answer 2

You want to use elimination?

Answer 3

substitution it looks

Answer 4

Both ways work

Answer 5

-2x+1=-x+5
-x=4
x=-4

Answer 6

y=-2x+1
y=-x+5

-2x+1=-x+5
-5+1=-x+2x
-4 = x

y=-x+5
y=-(-4)+5
y=4+5
y=9

x=-4
y=9