Berapa nilai a, jika ab + ac = 21 dan b + c = 7
ab + ac = 21
Gunakan sifat distributif:
a(b + c) = 21
a(7) = 21
7a = 21
a = 3
Berapa nilai a, jika ab + ac = 21 dan b + c = 7
ab + ac = 21
Gunakan sifat distributif:
a(b + c) = 21
a(7) = 21
7a = 21
a = 3