-7(0,3х-8)+3(0,4х + 5)=8

Question

-7(0,3х-8)+3(0,4х + 5)=8

Answer 1

-7(0,3х-8)+3(0,4х + 5)=8

-2,1х+56+1,2х+15=8

-2,1+1,2х=8-56-15

-0,9х=-63

х=70

Answer 2

-7(0,3х-8)+3(0,4х + 5)=8

-2,1х+56+1,2х+15=8

-2,1х+1,2х=8-56-15

-0,9х=-63

х=-63:(-0,9)

х=70

Ответ:70