Question

25 балла)))))))))))​

Answer 1

1/5х+16+3/10х+20+1/4х+30=х

0,2х+16+0,3х+20+0,25х+30=х

0,75х+66=х

0,75х-х=-66

-0,25х=-66

х=264

Answer 2

Ответ:

$\frac{1}{5} x + 16 + \frac{3}{10} x + 20 + \frac{1}{4} x + 30 = x$

$\frac{4}{20} x + 16 + \frac{6}{20} x + 20 + \frac{5}{20}x + 30 = x$

$\frac{15}{20} x + 36 + 30 = x$

$- \frac{5}{20} x = - 66$

$x = 264$