Question

Log2(x+3)=log2 5

Log2(2x+6)<3

Answer 1

2)
$log_2(x+3)=log_25 \\ x+3=5 \\ x=2$
4)
log_2(2x+6)<3
$0\ \textless \ 2x+6\ \textless \ 8 \\ -6\ \textless \ 2x\ \textless \ 2 \\ -3\ \textless \ x\ \textless \ 1$