# Solving Linear Equation by Guessing

Algebra Level 2

Given that $$f(x) = mx+b$$ such that $$f(2)=0$$, $$f(x_1)=f_1$$, and $$f(x_2)=f_2$$. Find the value of $\frac{f_1x_2 – f_2x_1}{f_1-f_2}.$

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