First I would distribute the left part like so:
12x - 18 - (5x + 7)
Then I would distribute the right side like so: (I'm just distributing a negative sign)
12x - 18 - 5x - 7
Then I combine like terms like so: (12x and -5x)
7x - 18 - 7
Then I would combine the other like terms like so: (-18 and -7)
7x - 25
I hope that helps! Feel free to let me know if you have any questions! :3
- mathwizzard3
Answer:
Step-by-step explanation:
Given
Required
Fill the array using doubling and halving
Question is incomplete, as the array is not given.
However, the solution is as follows:
Double 25 and half 68
Double 50 and half 34
The above is now easy to solve
This may be correct but since i think i understand the answer is c
Answer:
$21.51
Step-by-step explanation:
$71.70-70%=$21.51
Answer: 
Work Shown:
Therefore -7 goes in the first box, and 
goes in the second box.
