Verified answer

А) (8,8х+4,7)-(5,4х+2,2)=-1,6х

8,8х+4,7-5,4х-2,2=-1,6х

3,4х+2,5=-1,6х

5х=-2,5

х=-0,5

В) (7,4х-12,3х)-(1,56-2,3х)=2,6х

7,4х-12.3х-1,56+2,3х=2,6х

-2.6х-1,56=2,6х

-5,2х=1,56

х=-0,3

С) -(2,92-8,2х)-(1,6-4,7х+2,9х)=3,2

-2,92+8,2х-1,6+4,7х-2,9х=3,2

10х-4,52=3,2

10х=7,72

х=0,772

Д) -(4,1х-5,5х)-(7,3х+3,6)=-5,3х

-4,1х+5,5х-7,3х-3,6=-5,3х

-5,9х-3,6=-5,3х

-0,6х=3,6

х=-6

Е) (1,8х-1,9)-(2,7х-3,7)=2,1х

1,8х-1,9-2,7х+3,7=2,1х

-0,9х+1,8=2.1х

3х=1,8

х=0,6