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2X - 3Y = 0 ........ (x1) 2X - 3Y = 0
=> 3X + 2X + 3Y + (- 3Y) = 15 + 0
<=> 5X = 15
<=> X = 3
Z = 24
Z = 24/3
Z = 8X
2x + 3y = 0 x1 2x + 3y = 0
-------------------- -
5x = 15
x = 15/5
x = 3
z = 24 jadi z = x adalah, z = 24/ 3
= 8