Question

(2^x - 3).7=35

Giúp mình với . Thanks

Answer 1

\(=>2^x-3=5\)
\(2^x=8\)
\(2^x=2^3\)
\(=>x=3\)

Answer 2

\(\left(2^x-3\right)7=35\\ 2^x-3=35:7\\ 2^x-3=5\\ 2^x=5+3\\ 2^x=8\\ 2^x=2^3\\ x=3\)