Solve the equation2/7=4/5+9a

Martin Foot asked Oct 23, 2023

451,571 views

45 votes

Martin Foot asked Oct 23, 2023

2.9k points

Your comment on this question:

Email me at this address if a comment is added after mine:Email me if a comment is added after mine

Privacy: Your email address will only be used for sending these notifications.

Email me at this address if my answer is selected or commented on:Email me if my answer is selected or commented on

Privacy: Your email address will only be used for sending these notifications.

13 votes

The given equation is

First, we subtract 4/5 from each side.

$\begin{gathered} (2)/(7)-(4)/(5)=(4)/(5)-(4)/(5)+9a \\ 9a=(10-28)/(35) \\ 9a=(-18)/(35) \end{gathered}$

Then, we divide the equation by 9.

$\begin{gathered} (9a)/(9)=(-18)/(35\cdot9) \\ a=-(2)/(35) \end{gathered}$

Yuvaraj P answered Oct 27, 2023

2.5k points

Email me at this address if a comment is added after mine:Email me if a comment is added after mine

Privacy: Your email address will only be used for sending these notifications.

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

1.6m questions

2.0m answers