Answer:
b=2
Step-by-step explanation:
-12 + 3b -1 = -5 - b
-13 + 3b = -5 - b
+13 = +13
_____________
3b = 8 - b
+b = +b
_________
4b = 8
/4 = /4 <---divide 8 by 4
_______________
b = 2
1/4 in 36 hours
1/8 in 72 hours
3(x−3)(x+2)