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A - R = 10
A = 10 + R
jadi....
A = 3R
A = 10 + R
berarti...
3R = 10 + R
3R - R = 10
2R = 10
R = 5
A = 3R
= 3 × 5
= 15 tahun
jadiin jawaban terbaik y kawan....
- usia ani = a
- usia roni = b
a = 3b
a - b = 10
3b - b = 10
2b = 10
b = 5
a = 3b
a = 3 * 5
a = 15
Jadi usia ani = 15 tahun, usia roni = 5 tahun