10(2х*1)-9(х-2)+4(5х+8)=71

Question

10(2х*1)-9(х-2)+4(5х+8)=71

Answer 1

10(2х*1)-9(х-2)+4(5х+8)=7120х-9х+18+20х+32=71
31х=71-18-32
31х=21
х=21/31
Ответ: 21/31