Solve for t.

-3t≥39

t≥-13

t≤13

t≥13

t≤-13

One solution was found : t ≤ - 13 (Last answer choice)

Pull out like factors:

-3t - 39 = - 3 • (t + 13)

Divide both sides by - 3

Remember to flip the inequality sign:

Solve Basic Inequality:

Subtract 13 from both sides to get t≤-13