Answer:
PS = 10 
Step-by-step explanation:
Start with

Multiply the whole equation by 2. Since 2 is positive, we don't need to switch the inequality sign:

Subtract 3 from both sides:

Answer:
5 hours
Step-by-step explanation:
3/5 = x/1357
Cross multiple
5x = 4071
Divide by 5
X = 814 records of broken bone
Answer:
-1
Step-by-step explanation:
You have to use simultaneous linear equation as there are 2 equations given
use the subtitution method as what I've shown above
Hope you can understand well
Stay safe!