Question

Sarah has 12 red pencils she has 7 more red pencils than yellow how many yellow pencils does she have

Answer 1

y+7=12

→y+7-7=12-7

→y=5

she has 5 red pencils

Answer 2

Hi!

She has 12 red pencils and 7 less than that is how many yellow ones she has.

12-7=5

The answer is 5 yellow pencils

Hope this helps!
-Peredhel