y = 3x +2
And
-4x +2y = 8
Les't do the replacement of y = 3x+2
In the equation of donw
-4x + 2.( 3x+2) = 8
Now do the distributive
-4x + 2.3x + 2.2 = 8
-4x +6x+4=8
2x +4 =8
2x = 8-4
2x = 4
x = 4÷2
x = 2
Then,
y = 3x +2
y = 3.2 +3
y = 8
That is,
(x,y) = (2,8)
I hope this has helped.
