Question

27÷[26+(6×a-7×3)÷9]+(13-2×2×3=2

Answer 1

27:[26+(6×a-7×3)÷9]+(13-2×2×3)=2
26+(6×a-21)÷9+(13-12)=27×2
26+(6×a-21)÷9+1=54
(6×a-21):9+1=54+26
(6×a-21):9=80+1
6×a-21=81:9
6×a-21=9
6×a=21+9
6×a=30
a=30:6
a=5

Answer 2

27:[26+(6x a-21):9]+(`13-4 x 3)=2
27:[26+(6 x a -21):9]+(13-12)=2
27:[26+(6 x a -21):9]+1=2
27:[26+(6 x a -21):9]=2-1=1
[26+(6 x a -21):9]=1 x 27=27
[(6x a-21):9]=27-26=1
6 x a-21=1x9=9
6xa=9+21=30
a=30:6
a=5