Question

3^x+15=42

Answer 1

`3^x+15=42`

`3^x=42-15`

`3^x=27`

`3^x=3^3`

`=>x=3`

Answer 2

3^x+15=42

3^x=42-15

3^x=27

3^x=3³

x=3

Answer 3

\(3^x+15=42\)

`=>3^x=42-15`

`=>3^x=27`

`=>3^x=3^3`

`=>x=3`

Answer 4

\(3^x+15=42\)

\(3 ^ x = 27\)

\(3^x=3^3\)

\(=>x=3\)