Question

Xx3/2+7/2xX=2020

X:1/3+2/3=2

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Answer 1

\(x\cdot\frac{3}{2}+\frac{7}{2}\cdot x=2020\)

\(x\cdot\left(\frac{3}{2}+\frac{7}{2}\right)=2020\)

\(x\cdot5=2020\)

\(x=404\)

Answer 2

\(x:\frac{1}{3}+\frac{2}{3}=2\)

\(x\cdot3=2-\frac{2}{3}\)

\(x\cdot3=\frac{4}{3}\)

\(x=\frac{4}{9}\)

Answer 3

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Answer 4

X × 3/2 + 7/2 × X = 2020 

X × ( 3/2 + 7/2 ) = 2020 

X × 10/2 = 2020 

X × 5 = 2020 

X = 2020 : 5 

X = 404

Vậy X = 404 

X : 1/3 + 2/3 = 2 

X × 3 + 2/3 = 2 

X × 3 = 2 - 2/3 

X × 3 = 6/3 - 2/3 

X × 3 = 4/3 

X = 4/3 : 3 

X = 4/3 × 1/3 

X = 4/9 

Vậy X = 4/9

Answer 5

1.

X x 3/2 + 7/2 x X = 2020

X x ( 3/2 + 7/2 ) = 2020

X x 10/2 = 2020

X x 5 = 2020

X = 2020 : 5

X = 404

2.

X : 1/3 + 2/3 = 2

X x 3 + 2/3 = 2

X x 3 = 2 - 2/3

X x 3 = 4/3

X = 4/3 : 3

X = 4/9.