Question

solve using interval notation. 3(t-1)-4(t+1) 14 years ago

Answer 1

First distribute

Answer 2

\[3t-3-4t-4\le-12\]

Answer 3

Combine like terms

Answer 4

\[-t-7\le-12\]

Answer 5

add 7

Answer 6

divide by the negative

Answer 7

don't forget to flip the sign to greater than or equal to

Answer 8

So you get t greater than or equal to 5

Answer 9

Interval notation would be bracket -infinite, 5 bracket