-28=-7(3x+4)+21x thank you to anyone who helps

314,362 views

42 votes

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.

16 votes

$-28=-7(3x+4)+21x\\\\\implies -21x -28 +21x = -28\\\\\implies -28 =-28\\\\\text{The equation is true for all x.}$

2.7k 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