5t+ 3+ 2t- 6t = 4+12 how do i solve equations?

Well, first you can combine the like terms
5t + 2t - 6t = 7t -6t = 1t or just t

then you have; t + 3 = 4 + 12
you can then add 4 and 12 which equals 16

t + 3 = 16
-3 -3 then you subtract 3 on both sides
and get ...

t = 13 thus your answer :)

5t+3+2t-6t=4+12
or7t-6t=16-3
or t=13

It is 2 out of 8 she will pick green and 3 out of 7 she will pick green but red and green would be 5 out of 5 so 50% chance