Question

log1.3 (0.01x+0.001)=3

Answer 1

Смотри )))))))))))((((((((((((

Answer 2

log1.3(0.01x+0.001)=3
log1.3 (0.01x+0.001)=3log1.3  (1.3)
log1.3 (0.01x+0.001)=log1.3 (2.197)      0.01x+0.001>0      x>-0.1
0.01x+0.001=2.197
0.01x=2.197-0.001
0.01x=2.196
x=219.6