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Verified answer
Kelas 7 MatematikaBab Perbandingan
C = B + 8
B/C = 4/6
B = 4C/6
C = B + 8
C = 4C/6 + 8
◎◎ dikali 6 ◎◎
6C = 4C + 48
6C - 4C = 48
2C = 48
C = 24/2
C = 12
B = 4C/6
B = 4 . 12/6
B = 8
A/B = 5/4
A = 5 . 8/4
A = 10
A + C = 10 + 12
A + C = 22 tahun