Expand brackets first which would be 13 + - 12 - - 5*. So this would be 13- 12 + 5 = 6
*+5 because 2 negatives make a positive
Don't get the question wish i could help :(( sorry
<span>the answer is b. V = 396 - 5x; $341</span>
The sum of angle AOB and angle BOC is equal tot he angle of AOC so
6x+5 +4x-2 = 8x+21
10x+3=8x+21
Subtract three and 8x from both sides
2x=18
Divide by two
x=9
Hope this helped!
