Answer:
y= (13-3x)/-7 answers for x: -2 2/7, -1 6/7, -1 3/7
Step-by-step explanation:
3x-7y=13;
to start we wanna get y alone so we gonna get rid of x
3x-7y=13
-3x =-3x
---------------
-7x=13-3x
then we wanna get rid of the -7 in front
-7y=13-3x
/-7 /-7
---------------------
y= (13-3x)/-7
then substitute the x values in
(13-(-3))/-7=16/-7=-2 2/7
13-(0)/-7=13/-7=-1 6/7
13-(3)/-7= 10/-7=-1 3/7
