MathDB

2

Part of 2014 South africa National Olympiad

Problems(1)

Given $\frac{a-b}{c-d}$ and $\frac{a-c}{b-d}=3$...

Source:

10/25/2014
Given that \frac{a-b}{c-d}=2 \text{and} \frac{a-c}{b-d}=3 for certain real numbers a,b,c,da,b,c,d, determine the value of a−db−c.\frac{a-d}{b-c}.
algebra