Answer:
Step-by-step explanation:
Look for one or more common factors. Note here that 5 is a factor of 10x and also a factor of 5y, so 5 is a common factor of 10x+5y, and so ...
10x+5y = 5(2x + 1y) = 5(2x + y)
Repeat: dividing both terms of 10x+5y by the common factor 5 yields
5(2x + 1y) = 5(2x + y)
