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Verified answer
- Persamaan Garis Lurus -g : 2x + 3y = 12
3y = -2x+12
y = -2/3x+4
Mg = -2/3
k : ax+5y = 40
5y = -ax + 40
y = -a/5x + 8
Mk = -a/5
garis g dan k saling sejajar
Mg = Mk
-2/3 = -a/5 (kali silang)
-2x5 = -ax3
-10 = -3a
a = 10/3
Jawaban : B
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-vin