Question

Решите уравнение:
7(4-3х)-(8,5-х)=4-3(х-8)

Answer 1

7(4-3х)-(8,5-х)=4-3(х-8)

 

28-21х-8,5+х=4-3х+24

19,5-20х=28-3х

19,5-28=20х-3х

-8,5=17х

17х= - 8,5

Х= - 8,5:17

Х= - 0,5