Question

Найти корень: 47=10-(9х+2)
Найти корень: (3х+2)-(8х+6)=14

Answer 1

10-(9х+2)=47

10-9х-2=47

8-9х=47

-9х=47-8

-9х=39

х=-13/3

(3х+2)-(8х+6)=14

3х+2-8х-6=14

-5х-4=14

-5х=14+4

-5х=18

х=18:(-5)

х=-3,6