SOLUTION: Please help me solve these two problems. 1. 9(t-1)=(t+4)-t 2. 40-8s/5=-2s

Algebra ->  Equations -> SOLUTION: Please help me solve these two problems. 1. 9(t-1)=(t+4)-t 2. 40-8s/5=-2s      Log On


   

Question 12080: Please help me solve these two problems.
1. 9(t-1)=(t+4)-t


2. 40-8s/5=-2s
Answer by bonster(299) About Me  (Show Source):
You can put this solution on YOUR website!
1. 9(t-1)=(t+4)-t
9t-9=t+4-t
9t-9=4 (((add 9 to both sides)))
(9t-9)+9=(4)+9
9t=13 (((divide both sides by 9
9t%2F9=13%2F9
t=13%2F9 or 14%2F9



2. 40-8s%2F5=-2s (((( multiply both sides by 5
(40-8s%2F5)(5)=(-2s)(5)
200-8s=-10s (((((((add 8s to both sides
(200-8s)+8s=(-10s)+8s
200=-2s divide both sides by -2
200%2F-2=-2s%2F-2
-100=s