6 x X-2389=3779

6x X=6168

x=6168 : 6=1028

Ủng hộ mk nha

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

X x 6=3779+2389

X x 6= 6168

X=6168:6

X = 1028

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

Xx(3+2-2389)=3779

Xx(-2389)=3779

x=3779:(-2389)

x=-3779/2389

Vậy x=-3779/2389

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

Xx3+Xx2+Xx1                =3779+2389

Xx3+Xx2+Xx1                =6168

Xx(3+2+1 )                     =6168

Xx6                                =6168

                                    x=6168:6

                                    x=1028

x = 1028

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

X x 3 + X x 2 + X = 3779 - 2389

X x 3 + X x 2 + X = 1380

X x ( 3 + 2 + 1 ) = 1380

X x 6 = 1380

X = 1380 :6

X = 230

1028 nha

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

=>x*3+x*2+x=3779+2389

=>x*3+x*2+x=6168

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

=>x*6=6168

=>x=6168:6

=>x=1028

Vậy x=1028

x=1028

lm tn để = 1028 ghi chi tiết ra đi

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

x*(3+2+1)=3779+2389

x*6=6168

x=6168:6

x=1028

x = 1028

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

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

X + X + X x 6 - 2389 = 3779

X = (3779 - 2389) + 6

X = (1410 + 6) : 3

X = 1416 : 3

X = 472
 

1028 nha