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Verified answer
Jawab2x + y = 12 ....kali 2
3x - 2y = 25
4x + 2y = 24
3x - 2y = 25.....(+)
7x = 49
x = 7
2x + y = 12
2(7) + y = 12
14 + y = 12
y = - 2
(x,y)= (7, -2)
3x - 2y = 25
__________ +
7x = 49
x = 7
2x + y = 12
14 + y = 12
y = 12 - 14
y = - 2
HP
( x = 7 dan y = -2 )