Question

Solve 8t + 16 > 16t - (12t - 20).
A. {t| t > 1}
B. {t| t > -1}
C. {t| t < 4}
D. {t| t > 4}

Answer 1

start from here... (-)*(12t-20)= ?

Answer 2

can you do that?

Answer 3

not really

Answer 4

(-)*(-)=? minus times minus is equal to what? :)

Answer 5

+

Answer 6

ok how about (-)*(+)=?

Answer 7

-

Answer 8

ohh.. sorry I wasn't here.. yes that's right , so we have:

8t + 16 > 16t - (12t - 20).

8t + 16 > 16t - 12t + 20
8t + 16 > 4t + 20

now add -4t to both sides and -16 to both sides.. tell me what you get.