223k views
4 votes
Two seventh of a number is 30 less than the number . find the number

User Jayendran
by
3.7k points

1 Answer

1 vote

Let x = the number

So, the given situation can be expressed as:


(2)/(7)x=30-x

Then, solve for x:


\begin{gathered} (2)/(7)x+x=30-x+x \\ (9)/(7)x=30 \\ (7)/(9)\cdot(9)/(7)x=30\cdot(7)/(9) \\ x=(210)/(9)=(70)/(3) \end{gathered}

Answer: the number is 70/3

User Keybee
by
3.4k points