Evaluating Algebraic Expressions Using Given Values

Evaluating Algebraic Expressions Using Given Values

Secondary 1

Given that \(x=15\) and \(y=-6\), evaluate

\(8x-y\)
\(\frac{6x}{7y}\)
\(x^{2}-5y^{2}+\frac{1}{x}\)

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

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