4x + 5y = 2 2x - 3y = 12

4x + 5y = 2 dikali 1
2x - 3y = 12 dikali 2

4x + 5y = 2
4x - 6y = 24
---------------- -
11y = -22
y = -22/11
y = -2

4x + 5y = 2
4x + 5.(-2) = 2
4x - 10 = 2
4x = 2 + 10
4x = 12
x = 12/4
x = 3


semoga membantu dan bermanfaat

4x+5y=2=>8x+10y=4
2x-3y=12=>8x-11y=48
22y=-44
y=-2
jadi 2x-3y=12
2x-3(-2)=12
2x+6=12
2x=12-6
x=3