Question

1.100:(18+(82-10х):6)=5

2.2х+4)*20-85=35

Заранее спасибо

Answer 1

1.100:(18+(82-10х):6)=5
100:(18+41/3-5/3х)=5
18+41/3-5/3х=100:5
18+41/3-5/3х=20
41/3-5/3х=20-18
41/3-5/3х=2
5/3х=41/3-2
5/3х=35/3
х=35/3:5/3
х=35/3*3/5
х=7

 2.(2х+4)*20-85=35
(2х+4)*20=35+85
(2х+4)*20=120
2х+4=120:20
2х+4=6
2х=6-4
2х=2
х=1

Answer 2

спасибо за помощь