Question

X x 3 + X x 2 +X - 2389 = 3779 

Answer 1

X x ( 3 + 2 - 1 ) = 3779 + 2389

X x 4 = 6168

X = 6168 : 4

X = 1542

Answer 2

ta có Xx3 + Xx2 +X -2389 =3779

         =Xx(3+2+1)-2389=3779

         =Xx6=6168

    X=1028

Answer 3

X x 3 + X x 2 + X -2389 =3779

=>X x 3 +X x 2 + X =6168

=>X x (3+2+1)=6168

=>X x 6 = 6168

=> X = 1028

Nho k cho mk do nha