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Verified answer
Kelas 7 MatematikaBab Perbandingan
6/(a + 2) = 9/(2a - 1)
6 (2a - 1) = 9 (a + 2)
12a - 6 = 9a + 18
12a - 9a = 18 + 6
3a = 24
a = 24/3
a = 8
Verified answer
6/a+2 = 9/2a-1 (kali silang)6(2a-1) = 9(a+2) (dikalikan)
12a-6 = 9a+18
12a-9a = 18+6 (pindah ruas)
3a = 24 (dibagi)
a = 8 (b)
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