X+y+z=42. X+y=20. X+z=10
Matematika
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Pertanyaan
X+y+z=42. X+y=20. X+z=10
1 Jawaban
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1. Jawaban dani67319
x+y+z=42...(1)
x+y=20.......(2)
x+z=10.......(3)
eliminasi pers. (1) ke (2)
x+y+z=42
x+y =20
z=22
x+z=10
x+22=10
x=-12
x+y=20
-12+y=20
y=32
x= -12 y=32 z=22