Question

34+(21-x)=(3747-30)-3746

 

Answer 1

34+(21-x)=3747-30-3746

21-x=(3747-3747)-(30+34)

21-x=1-64

x=21-(-63)=21+63

x=84

Answer 2

x=84

T I C K    nha

Answer 3

34+(21-x) =(3747-30)-3746

34+(21-x)=3717-3746

34+(21-x)= -29

21-x=-29-34

21-x=-63

x=21-(-63)

x= 21+63

x=84 

Tick nha 

Answer 4

34+(21-x)=(3747-30)-3746

=>34+(21-x)=-29

=>21-x=34-(-29)=63

=>x=21-63=-42

vậy x=-42

Answer 5

mk nhầm, giải lại:

34+(21-x)=(3747-30)-3746

=>34+(21-x)=-29

=>21-x=-29-34=-63

=>x=21-(-63)=84