To figure that out you could do 99 minus 38, which would lead you to your answer 61.
Division , timetable , adding , and subtracting
39x-3y=21
-3y=21-39x
(subtract both sides of the equation by 39x and divide both sides by -3)
y=-7+3x : would be the equation for y.
Answer:
(–2, 11), (1, –4), (0, 1)
-72yexponet73 + 2xexponet2 :)