Question

PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!!

Solve: log2(x-4) = 4

Answer 1

Answer: D) 20

Explanation:

Use log rules to convert log into exponent:

`log_a(x)=y\quad \rightarrow \quad x=a^y\\\\log_2(x-4)=4\quad \rightarrow \quad x-4=2^4\\\\x-4=16\\.\qquad x=20`