Question

tìm x 

[ ( 6 x - 72 ) : 2 - 84 ] . 28 = 5628

Answer 1

[ ( 6 x - 72 ) : 2 - 84 ] . 28 = 5628

(6x - 72) : 2 -84 = 5628:28=201

(6x-72):2=201+84=285

6x-72=285x2=570

6x=570+72=642

x=642:6

x=107

Answer 2

[ ( 6x - 72 ) : 2 - 84 ] . 28 = 5628

( 6x - 72 ) : 2 - 84 = 5628 : 28

( 6x - 72 ) : 2 - 84 = 201

( 6x - 72 ) : 2 = 201 + 84

( 6x - 72 ) : 2 = 285

6x - 72 = 285 x 2

6x - 72 = 570

6x = 570 + 72

6x = 642

x = 642 : 6

x = 107

Answer 3

6x-75/2-84=5628/28=201

6x-75/2=201+84=285

6x-75=285*2=570

6x=570+75=645

x=645/6

Answer 4

107 nha bạn