Respuesta :

choixongdong
9r+7+3(8p+7r)+15
= 9r + 7 + 24p + 21r +15
= 24p + 30r + 22

hope it helps
Kaikerscupcake
We can simplify it to get something equivalent. 

9r+7+3(8p+7r)+15

Distribute the 3.

9r+7+24p+21r+15

Combine like terms. 

7+15=22
9r+21r=30r
24p=24p

SO,

30r+24p+22 <== equivalent expression 

I hope this helps!
~kaikers