Question

Tìm x sao cho: 1x32 + 7x8 +4x = 200x

Answer 1

1032 + X x 100 + 708 + X x 10 + 40 + X x 1 = 2000 + X

(1032 + 708 + 40) + (X x 100 + X x 10 + X x 1) = 2000 + X

1780 + X x ( 100 + 10 +1 ) = 2000 + X

1780 + X x 111 =2000 + x

1780 + X x 111 - X = 2000

1780 + X x 110 =2000

X x 110 = 2000 - 1780

X x 110 = 220

X = 220 :110

X = 2

Answer 2

1032+708+40+(x00+x0+x)=2000+x.

=>1780+xx0+x=2000+x.

=>xx0=2000-1780=220.

=>x=2.

Vậy x=2.

tk mk nha các bn.

-chúc ai tk mk học giỏi và may mắn-

Answer 3

32x+56x+4x=200x

x(32+56+4)=200x

x92=200x

=>x92-200x=0

x(92-200)=0

x.(-108)=0

x=0:(-108)

x=0