Given that $x=15$ and $y=-6$, evaluate $8x-y$ $\frac{6x}{7y}$ $x^{2}-5y^{2}+\frac{1}{x}$

Question

Accepted Answer

(a) $126$ (b) $-2\frac{1}{7}$ (c) $45\frac{1}{15}$

Evaluating Algebraic Expressions Using Given Values