SOLUTION: I am needing some help on this question 6 ≤ 3t - 3 ≤ 21 I know there is a 3 and 8 however what order or -/+ sign I am lost.

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Question 98211: I am needing some help on this question
6 ≤ 3t - 3 ≤ 21
I know there is a 3 and 8 however what order or -/+ sign I am lost.
Found 2 solutions by elima, tutorcecilia:
Answer by elima(1433) About Me  (Show Source):
You can put this solution on YOUR website!
6 ≤ 3t - 3 ≤ 21
You need to first isolate the 3t, since 3 is being subtracted from 3t, we will add it to all sides;
6+3 ≤ 3t -3 +3 ≤ 21 + 3
9 ≤ 3t ≤ 24
Now isolate the t by dividing each side by 3;
9%2F3≤3t%2F3≤24%2F3
3 ≤ t ≤ 8
:)

Answer by tutorcecilia(2152) About Me  (Show Source):
You can put this solution on YOUR website!
6 <= 3t-3 <= 21
6 +3<= 3t-3+3 <= 21+3
9 <= 3t <= 24
9/3 <= 3t/3 <= 24/3
3 <= t <= 8