Question

X + 2 x X + 3 x X + 4 x X = 50

Answer 1

X + 2 x X + 3 x X + 4 x X = 50

X x ( 1 + 2 + 3 + 4 ) = 50

X x 10 = 50

X = 50 : 10

X = 5

Answer 2

X + 2 x X + 3 x X + 4x X = 50

X x ( 1+2+3+4) = 50

X x 10 = 50

X = 50 : 10

X = 5

Answer 3

\(x+2\cdot x+3\cdot x+4\cdot x=50\)

\(x\cdot\left(2+3+4+1\right)=50\)

\(x\cdot10=50\)

\(x=50:10\)

\(x=5\)

Answer 4

\(x+2x+3x+4x=50\)

\(x\times\left(1+2+3+4\right)=50\)

\(x\times10=50\)

\(x=50:10\)

\(x=5\)

Vậy x=5

Answer 5

X + 2 x X + 3 x X + 4 x X = 50 

X x ( 1 + 2 + 3 + 4 ) = 50 

X x 10 = 50 

X = 50 : 10 

X = 5

Answer 6

\(x+2\times x+3\times x+4\times x=50\)

\(x\times\left(1+2+3+4\right)=50\)

\(x\times10=50\)

\(x=50\div10\)

\(x=5\)

Vậy x = 5

Answer 7

X + 2 x X + 3 x X + 4 x X = 40

 X x ( 2 + 1  + 3 +4 ) = 50

X x 10 = 50

X = 50 : 10

X = 5

Vậy X = 5

Chúc bạn học tốt !

Answer 8

 X+2xX+3xX+4xX=50

 Xx(1+2+3+4)=50

 Xx10=50

X =50:10

 X=5

Answer 9

X + 2 x X + 3 x X + 4 x X = 40

 X x ( 2 + 1  + 3 +4 ) = 50

X x 10 = 50

X = 50 : 10

X = 5

Vậy X = 5

Answer 10

Ta có:

X + 2 x X + 3 x X + 4 x X = 40

 X x ( 2 + 1  + 3 +4 ) = 50

X x 10 = 50

X = 50 : 10

X = 5

hok tốt