Question

Himpunan penyelesaian dari sistem persamaan linear 3x - 5y = -5 dam 2x -3 = 4 adalah A.{(22,-35)} B.{(-22,35)} C.{35,22)} D.{-35,-22)} dngan cranya

Answer 1

3x-5y=-5............ (x2)
2x-3y=4............. (x3)
_________________
6x-10y= -10
6x-9y = 12
______________ _
-y = -22
y = 22

6x-10y = -10
6x-10(22) = -10
6x-220 = -10
6x = 210
x = 35

(x,y) = (22,35)