Answer:
t = [tex]\frac{2r}{r+1}[/tex]
Step-by-step explanation:
Isolate the term with t by adding s to both sides
[tex]\frac{2rs}{t}[/tex] = rs + s = s(r + 1) ← common factor of s
multiply both sides by t to eliminate the fraction
ts(r + 1) = 2rs ( divide both sides by s(r + 1)
t = [tex]\frac{2rs}{s(r+1)}[/tex] ← cancel s on numerator/denominator
t = [tex]\frac{2r}{r+1}[/tex]
