Question

2х+1/8,1=2/1,8 решите уравнения

Answer 1

$frac{(2+1)}{1,8} = frac{2}{1,8} \ frac{20x+10}{81} = frac{10}{9} \ 20x+10= frac{10*81}{9} \ 20x=90-10 \ x=80/20 \ x=4$

Answer 2

спасибо)

Answer 3

dct