Question

$9^{x+1} +3^{2x+4}=30$

Answer 1

3^2x+2+3^2x+4=30
3^2x+2(1+3^2)=30
3^2x+2 *10=3
3^2x+2=3^1
2x+2=1
2x=-1
x=-1/2