v
s is directly proportional to t
50
2t
S = 3 st + 3t = 6 st = 6 - 3t s = (6 - 3t)/t = 6/t - 3
v
3
wth??
s = 7, t = -3
s is directly proportional to t
50
31
If you simplify the equation (s+t+s) the answer is 2s+t
2t
T-ty E .
S = 3 st + 3t = 6 st = 6 - 3t s = (6 - 3t)/t = 6/t - 3
Solving for two unknown variables (s and t) requires two independent equations. You have only one.