Question

No 2-5
Tolong pakai cara

Answer 1

4. luas = 64
l = 64/8
l = 8
x+4 = 8
x = 4

5. amir = a
anwar = b
a = b+6
a-3 = 2(b-3)
b+6-3 = 2b-6
b+3 = 2b-6
b-2b = -6-3
-b = -9
b = 9 tahun ( anwar )
a = 9+6 = 15 tahun ( amir )