EDGE Math 8

Perform the indicated operations and simplify the resulting expression. Choose the correct answer.

1.	$\frac{x + 5}{6} + \frac{2 x - 3}{6}$

\frac{2 x - 3}{6}

\frac{3 x - 2}{6}

\frac{3 x + 2}{6}

none of the choices

Answer: $\frac{3 x + 2}{6}$

2.	$\frac{2 x - 3}{5} - \frac{x}{5}$

\frac{x - 3}{5}

\frac{2 x - 3}{5}

\frac{- 3}{5}

none of the choices

Answer: $\frac{x - 3}{5}$

3.	$\frac{4 x}{x - 2} + \frac{2 x - 3}{x - 2}$

\frac{6 x + 3}{x - 2}

\frac{6 x - 3}{x - 2}

none of the choices

Answer: $\frac{6 x - 3}{x - 2}$

4.	$\frac{3 x + 8}{x + 4} + \frac{x + 8}{x + 4}$

\frac{4 x + 16}{x + 4}

\frac{4 x - 16}{x + 4}

none of the choices

Answer: 4

5.	$\frac{5 x - 4}{x^{2} - 1} - \frac{4 x - 3}{x^{2} - 1}$

\frac{1}{x}

\frac{x - 1}{x^{2} - 1}

\frac{1}{x + 1}

none of the choices

Answer: $\frac{1}{x + 1}$

6.	$\frac{4 x + 3}{x^{2} - 25} + \frac{2 - 3 x}{x^{2} - 25}$

\frac{1}{x - 5}

\frac{x + 5}{x^{2} - 25}

\frac{1}{x + 5}

none of the choices

Answer: $\frac{1}{x - 5}$

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