Question

-1(10.2-t=3.5)

Answer 1

you mean: -1(10.2 - t) = 3.5

?

Answer 2

yah

Answer 3

First multiply the -1 in:

-10.2 + t = 3.5

now add 10.2 to both sides:

t = 13.7

Answer 4

thanks :D