Ask your own question, for FREE!
Mathematics 7 Online
OpenStudy (anonymous):

When you solve the equation x plus nine equals fifteen, how do you know what number to subtract from both sides?

OpenStudy (anonymous):

well, you are trying to find what equals 15. so subtract 9 from 15. x+9=15 15-9=6 :) hope this helps

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!