Question

Nhanh thì đc tick

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

Answer 1

\(\left[\left(6\times x-72\right):2-84\right]\times28=5628\)

\(\left(6\times x-72\right):2-84=5628:28\)

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

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

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

\(6.x-72=285.2\)

\(6.x-72=570\)

\(6.x=570+72\)

\(6.x=642\)

\(x=642:6\)

\(x=107\)

Answer 2

[(6xX-72):2-84]x28=5628

⇒ (6xX-72):2-84=5629:28=201

⇒ (6xX-72):2=201+84=285

⇒ 6xX-72=285x2=570

⇒ 6xX=570+72=642

⇒ X= 642:6=107

⇒ X=107