SOLUTION: 9(⌊4(x-5)+19⌋- ⌊3(2x-3)+1⌋). I need to simplify this problem. I came up with : 36x -45 +19 - 42 x -54 +20. Could you please help me continue? Thank you.

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: 9(⌊4(x-5)+19⌋- ⌊3(2x-3)+1⌋). I need to simplify this problem. I came up with : 36x -45 +19 - 42 x -54 +20. Could you please help me continue? Thank you.      Log On


   

Question 289226: 9(⌊4(x-5)+19⌋- ⌊3(2x-3)+1⌋). I need to simplify this problem. I came up with : 36x -45 +19 - 42 x -54 +20. Could you please help me continue? Thank you.
Answer by unlockmath(1688) About Me  (Show Source):
You can put this solution on YOUR website!
Hello,
Let's start from the beginning. 9(⌊4(x-5)+19⌋- ⌊3(2x-3)+1⌋) First it will simplify to:
9(⌊4x-20)+19⌋- ⌊6x-9)+1⌋) From here we can do this:
9(⌊4x-1⌋-⌊6x-8⌋) Now we can do this:
9(4x-1-6x+8) Next is:
9(-2x+7) And finally we get:
-18x+63 We could rewrite it this way:
-9(2x-7)
Note the use of Brackets and parenthesis are incorrect in the original problem.
Make sense?
RJ
www.math-unlock.com)