Question

3(x-3)/x+20=1000/8000

Answer 1

here's your answer looking for

$\frac{3(x - 3)}{x} + 20 = \frac{1000}{8000} \\ \\ \frac{3x - 9}{x} + 20 = \frac{1}{8} \\ \\ \frac{3x - 9 + 20x}{x} = \frac{1}{8} \\ \\ \frac{23x - 9}{x} = \frac{1}{8} \\ \\ 8(23x - 9) = x \\ \\ 184x - 72 = x \\ \\ 183x = 72 \\ \\ x = \frac{72}{183} = \frac{24}{61}$
hope you are satisfied with my answer

Answer 2

$3(x - 3) \div x + 20 = 1000 \div 8000 \\ (3x - 9) \div( x +20 ) = 1 \div 8$
so here by cross multiply
$24x - 72 = x + 20 \\ 24x - x = 72 + 20 \\ 23x = 92 \\ x = 92 \div 23$