Answer:
52.50
Step-by-step explanation:
X=-12
Subtract -5/2 on both sides:
X/3+5/2-5/2=-3/2-5/2
X/3=-8/2
X/3=-4
Multiply both sides by 3:
X/3*3=-4*3
83 Hours
First do 13x6=78
then add 5 hours to 78 hours and you get 83