Page 21 - MATRIK SMK KELAS X_NAOMI TRI MADA

3 = 3c → c = 1

-b – 3 = -5c

-b – 3 = -5

-b = -2 → b = 2

3 + b = -1 + 3a

3 + 2 = -1 + 3a

5 = -1 + 3a

6 = 3a

Jadi nilai a = 2

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