y + 1.2y + 1.2z

Someone told me that the answer was 2.2y + 1.2z

1. Is that true?

2. How did the 1.2y turn into 2.2y?

3 answers

1y + 1.2y = 2.2y

Yes that answer is correct.
Ohhh! Now I understand! Thank you so much!
You are very welcome. :-)