-5 | |
n |
= |
-20 |
8 |
If 2 proportions are equal:
we can cross multiply to get:
Numerator 1 Denominator 1
=
Numerator 2 Denominator 2 Numerator 1 * Denominator 2 = Denominator 1 * Numerator 2
Denominator 1 = | Numerator 1 * Denominator 2 |
Numerator 2 |
n = | -5 * 8 |
-20 |
n = | -40 |
-20 |