Question

I really need help with this I have an upcoming test.

Answer 1

Hi,

Explanation:

`7^(x+3)=8\\\\ln(7^(x+3))=ln(8)\\\\(x+3)*ln(7)=ln(8)\\\\x+3=(ln(8))/(ln(7)) \\\\x=(ln(8))/(ln(7)) -3x=-1,9313784386759334704574687659961...\\\\\boxed{x\approx{-1.93}}`