Question

Tolong ya
terima kasih

Answer 1

2x/3 - y/2 = 5/6

4x/6 - 3y/6 = 5/6

4x - 3y = 5

3y = 4x - 5

=> 12y = 16x - 20

3x/4 + y = 5/2

3x/4 + 4y/4 = 10/4

3x + 4y = 10

9x + 12y = 30

9x + (16x -20) = 30

25x = 30+20

25x = 50

x = 2

3(2) + 4y = 10

4y = 10 -6

4y = 4

y = 1

=> x + y

= 2 + 1

= 3 (C)