I'm not sure if I'm right but I got 21 don't depend on me to get ur answer correct tho Bc I'm not sure
Answer:
5
Step-by-step explanation:
Simply move -2 to another side.
Distribute -1/3 in (x+6)
---> Answer
Answer:
10 days
Step-by-step explanation:
10 workers work 2 hrs a day for 5 days, so the work content is 10*5*2=100 manhours.
2 people work 5 hrs a day, so they deliver 10 manhours a day. To finish a work of 100 manhours,they’ll need 100/10=10 days.
The answer is 10 days.
X/y=9
x+y=55
x=-y+55
-y+55/y=9
-y+55=9y
-10y=-55
y=5.5
x=49.5