Question

Aflati termentl necunoscut x din relatia:
{245:5xX}:9+89=100

Answer 1

(245 : 5 * x) : 9 + 89 = 100
(245 : 5 * x) : 9 = 100 - 89
245 : 5x = 11 * 9
245 = 99 * 5x
245 = 495x
x = 245/495
x = 49/99