Answer
t = 21
Work Step by Step
$\frac{3}{-7}$ = $\frac{-9}{t}$
First, use the Cross Products Property.
3(t) = -7(-9)
Simplify the right side of the equation.
3t = 63
(Note: A negative multiplied by a negative is a positive.)
To find t, divide both sides of the equation by 3.
$\frac{3t}{3}$ = $\frac{63}{3}$
t = 21
