Question

câu 9 : tìm x                                                                                                                           A)  x + 3/4 = 5/3                                  B)  x - 2/3 = 7/2

Answer 1

A)  x + 3/4 = 5/3

x = 5/3 - 3/4 

x = 11/12

B) x - 2/3 = 7/2

x = 7/2 + 2/3

x = 25/6

Answer 2

a,\(x+\dfrac{3}{4}=\dfrac{5}{3}\)
\(x=\dfrac{5}{3}-\dfrac{3}{4}\)
Vậy \(x=\dfrac{11}{12}\)
b,\(x-\dfrac{2}{3}=\dfrac{7}{2}\)
   \(x=\dfrac{7}{2}+\dfrac{3}{2}\)
   \(x=5\)
Vậy \(x=5\)

Answer 3

A) \(x=\dfrac{5}{3}-\dfrac{3}{4}=\dfrac{11}{12}\)

B) \(x=\dfrac{7}{2}+\dfrac{2}{3}=\dfrac{25}{6}\)

Answer 4

a

x = 5/3 -3/4

x = 20/12 - 15/12

x = 5/12

b

x = 7/2+2/3

x = 21/6 + 4/6

x= 25/6