[tex]909 \div 9 - (9 \times 9 \div x - 9) = 101[/tex]
[tex]909 \div 9 - (9 \times 9 \div x - 9) = 101[/tex]
[tex]x = 0[/tex]
[tex]101 - ( \frac{9 \times 9}{x} - 9) = 101[/tex]
[tex] - ( \frac{81}{x} - 9) = 0[/tex]
[tex] - \frac{81}{x} + 9 = 0[/tex]
[tex] - \frac{81}{x } = - 9[/tex]
[tex]81 = 9x[/tex]
[tex]9x = 81[/tex]
[tex]x = 9[/tex]
