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Verified answer
2.3.
Maaf Kalau Salah
2. 2+11/b=7 1/2
2b/b+11/b=15/2
15b=2(2b+11)
15b=4b+22
15b-4b= 22
11 b= 22
b= 22/11
b= 2
3. 3x+12=6x-18
3x-6x= -18-12
-3x= -30
x= -30/-3
x= 10
x-2
= 10-2 = 8
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