Question

3(t-3)=5(2t+1)
Is its answer is t=-2?

Answer 1

3(t-3)= 5(2t+1)

3t-9- 10t+5

-5-9=10t-3t

-14=7t

t=-2

yes, t=-2.

Answer 2

yes you are right as
3t-9=10t+5
3t-10t=5+9
-7t=14
t=14(-7)
so t=-2