(x - 12y = -4
( x - 9y = 7

9514 1404 393

  (x, y) = (40, 11/3)

Step-by-step explanation:

The variable x can be eliminated by subtracting the first equation from the second.

  (x -9y) -(x -12y) = (7) -(-4)

  3y = 11 . . . . . . .simpify

  y = 11/3 . . . . . .divide by 3

  x -9(11/3) = 7 . . . . substitute for y in the second equation

  x = 40 . . . . . . . add 33

The solution is (x, y) = (40, 11/3).

The answer is 270 cars.you can do this by making a proportional relationship. for instance, 200 is the whole we are using, so on a “number line” 200 would be over 100%. now, since he sells 35% more, add 35% to 100% to get 135% on the other side of the “number line” on the bottom half, leaving the top half empty.cross multiply 200 by 135 then divide by 100 to get your answer. i hope this , if it did, , if you don’t mind, giving me brainiest! 200/100% } 200 • 135 /100 ? /135%