Question

Tìm x :

a) x + 3/5 = 7/2

b)x- 1/4 = 1/5

c) 2 - x = 4/7

Answer 1

a) \(x+\frac{3}{5}=\frac{7}{2}\)

\(x=\frac{7}{2}-\frac{3}{5}=\frac{29}{10}\)

b) \(x-\frac{1}{4}=\frac{1}{5}\)

\(x=\frac{1}{5}+\frac{1}{4}=\frac{9}{20}\)

c) \(2-x=\frac{4}{7}\)

\(-x=2-\frac{4}{7}=\frac{10}{7}\Rightarrow x=-\frac{10}{7}\)

(k cho tớ với nhá!)

Answer 2

a) x=29/10

b) x=9/20

c)10/7

Answer 3

\(a,x+\frac{3}{5}=\frac{7}{2}\)

             \(x=\frac{7}{2}-\frac{3}{5}\)

             \(x=\frac{29}{10}\)

Answer 4

a )  x = 7/2 - 3 /5 

      x = 29/10

 b )  x = 1/5 + 1/4

        x = 9 / 20

 c )    x = 2 - 4/7

         x = 10 / 7

Answer 5

a)x=29/10

b)x=9/20

c)x=10/7