Question

Mọi người giúp mình nhanh với

 

Answer 1

\(\dfrac{x-2}{6}=\dfrac{49}{42}=>x-2=\dfrac{49.6}{42}=7=>x=7+2=9\)

Answer 2

=>x-2=7

hay x=9

Answer 3

x−26=4942=>x−2=49.642=7=>x=7+2=9