146k views
0 votes
9^x=27^(x+2)
how do I do that? I don't get how to do it with different bases

1 Answer

2 votes

9^x=27^(x+2)\\ 3^(2x)=3^(3(x+2))\\ 2x=3(x+2)\\ 2x=3x+6\\ 3x-2x=-6\\ x=-6
User Mike Summers
by
7.0k points