Find the common factors of each pair of numbers.

a)14 and 21 b)20 and 12 c)45 and 15

Please study this explanation.

http://www.mathsteacher.com.au/year7/ch03_prime/05_comm/fac.htm

We'll be happy to check your answers.

3 times x plus 5 = 41

I don't really understand this.

3x + 5 = 41

3x + 5 - 5 = 41 - 5
3x = 36
x = 12

thank u sooo much i will use this as a guide for all my other questions ur the best!!! im really sorry for all the questions i had. :(

If you really understand it, then I'm more than happy to help you. Good luck on your test.

that helped so much now im answering all my other questions ur the best ms sue!!

thanks alot ms sue really without u i would have been in trouble and got a really bad mark!!! thaks to u ill pass with flying colours!! im going to use this site all the time!! ur the best!!

Thank you.

now i will be prepared for my math test wednesday because now i know what im doing!

omg no thank u!!!!!!!!!!!!!!! :D:D =) can u go back on this site again at 9:00pm tom and u can help me??????:P