2 | |
3x |
%3D |
6 |
9 |
If 2 proportions are equal:
we can cross multiply to get:
Numerator 1 Denominator 1
%3D
Numerator 2 Denominator 2 Numerator 1 * Denominator 2 %3D Denominator 1 * Numerator 2
Denominator 1 %3D | Numerator 1 * Denominator 2 |
Numerator 2 |
3x %3D | 2 * 9 |
6 |
3x %3D | 18 |
6 |
3x %3D 3
Because we have an inequality and we are dividing by a positive number, we keep the same sign %3D
3x | |
3 |
%3D |
3 |
3 |