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