Question

Pakai cara yaaaa !!!!!

Answer 1

3 thn lalu
(a - 3)=2(b - 3)
a - 3 =2b - 6
a - 2b= -6 + 3
a - 2b = -3

2 th yg akan datang
4( a + 2) = (b + 2) + 36
4a + 8 = b + 38
4a - b =30 (dikali 2)
8a -2b =60

dieliminasi
a- 2b = -3
8a - 2b = 60
-------------------- -
-7a = -63
a = 9thn

Answer 2

3 th yll >> A=2B
2 th lg >> 4A=B+36
Skrg   >> A=?