Question

[(6x-72) : 2 - 84] . 28 = 5628 

Answer 1

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

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

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

6x-72 =285.2=570

6x =570+72=642

x =642:6= 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=285.2

6x-72=570

6x=570+72

6x=642

x=624:6

x=104

Vậy x=104

giùm mk nha bạn!!!!

Answer 3

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

\(\Rightarrow\left(6x-72\right):2-84=201\)

\(\Rightarrow\left(6x-72\right):2=285\)

\(\Rightarrow6x-72=570\)

\(\Rightarrow6x=642\)

\(\Rightarrow x=107\)

vậy x = 107

Chúc pn hk tốt ^-^