Question

afla pe a din 27÷[26+(6×a-7×3)÷9]+(13-2×2×3)=2 scrie si rezolvarea te rog

Answer 1

27÷[26+(6a-7×3)÷9]+(13-2×2×3)=2/×27
26+(6a-7×3)÷9+(13-4×3)=54/-26
(6a-7×3)÷9+(13-12)=28
(6a-7×3)÷9+1=28/-1
(6a-21)÷9=27/÷9
6a-21=3/+21
6a=24
a=24÷6
a=4