Question 852320
y=8x+1
12x+3y=39
--------------
12x+3(8x+1)=39
12x+24x+3=39
36x=39-3
x=36/36
x=1
-----------------
12*1+3y=39
3y=39-12
3y=27
y=27/3
y=9
----
(1,9)
------------
y=8x+1
9=8*1+1
9=9