how to solve for 3x-5y = 9
where; x= -1, 0, 1
(x=-1, y= - 2.4) ; ( x=0, y = -1.8) (x=1, y= - 1.2)
in x = -1 in x = 0 in x = 1
3 (-1)- 5y = 9 3(0)- 5y = 9 3 (1)- 5y = 9
-3-5y = 9 -5y = 9 3-5y = 9
-5y = 9+3 -5 -5 5y = 9-3
-5y = 12 (cancel -5) 5y = 6
-5 -5 y= -1.8 5 -5
(cancel -5) (cancel -5)
y= -2.4 y= -1.