Question

Gi ải gấp giúp mình với ạ

Answer 1

uk

 

Answer 2

A ) x = \(\dfrac{1}{3}+\dfrac{7}{6}\)

     x = \(\dfrac{3}{2}\)

B ) x = \(\dfrac{7}{10}-\dfrac{2}{5}\)

      x = \(\dfrac{3}{10}\)

 

Answer 3

C ) \(\dfrac{10}{11}x\) + \(\dfrac{58}{13}=\dfrac{71}{13}\)

       \(\dfrac{10}{11}x=\dfrac{71}{13}-\dfrac{58}{13}\)

        \(\dfrac{10}{11}x=1\)

         \(x=\dfrac{10}{11}\)

E ) x - 2 . x - 2 = 27 .3

    ( x - 2 )²        = 81

    ( x - 2 )²        = 9²        

      x - 2             = 9               

     x                  = +_7