Question

Nilai y yang memenuhi sistem persamaan 2x + 3y = 12 dan 3x – 2y = 5 adalah​

Answer 1

2x + 3y = 12
3x - 2y = 5
6x + 9y = 36
6x -4y = 10
————— –
13y = 26
y = 26/13
y= 2

2x + 3(2) = 12
2x + 6 = 12
2x = 12 -6
2x = 6
x = 6/2
x = 3