SOLUTION: Please explain step by step how to symplify: (2t+4)3+6(-5t)-(-8) The answer in my book is: -24t+20 I don't have a clue how to get there.

Algebra ->  Expressions -> SOLUTION: Please explain step by step how to symplify: (2t+4)3+6(-5t)-(-8) The answer in my book is: -24t+20 I don't have a clue how to get there.      Log On


   

Question 220615: Please explain step by step how to symplify: (2t+4)3+6(-5t)-(-8)
The answer in my book is: -24t+20
I don't have a clue how to get there.
Found 2 solutions by chibisan, rapaljer:
Answer by chibisan(131) About Me  (Show Source):
You can put this solution on YOUR website!
(2t+4)3+6(-5t)-(-8)
Expand all
(6t+12)-30t +8
= -24t +20

Answer by rapaljer(4671) About Me  (Show Source):
You can put this solution on YOUR website!
(2t+4)3+6(-5t)-(-8)


By distributive property:
6t + 12 - 30t +8

Combine like terms:
6t - 30t + 12 +8
-24t + 20

R^2

Dr. Robert J. Rapalje
Seminole State College of Florida
Altamonte Springs Campus.