I need help with this problem? Thanks. The numbers in parenthesis in my book are like exponenets but toward the bottom, kinda like a log number. I did't know how to write that. The answer will be x1= and x2 equals. I cant do it like a regular system of equations problem, its giving me problems. Thanks for any help..

2x(+5x1)(=92)

5x(+7x1)(=82)