Q167: For the given rational functions
Q168: Simplify the complex fraction.<br>- <span class="ql-formula"
Q169: <span class="ql-formula" data-value="\frac{x-4}{x-8}=\frac{4}{x-8}"><span class="katex"><span class="katex-mathml"><math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mfrac><mrow><mi>x</mi><mo>−</mo><mn>4</mn></mrow><mrow><mi>x</mi><mo>−</mo><mn>8</mn></mrow></mfrac><mo>=</mo><mfrac><mn>4</mn><mrow><mi>x</mi><mo>−</mo><mn>8</mn></mrow></mfrac></mrow><annotation encoding="application/x-tex">\frac{x-4}{x-8}=\frac{4}{x-8}</annotation></semantics></math></span><span
Q170: <span class="ql-formula" data-value="\frac{x^{2}-9 x}{x-7}+\frac{2 x-28}{7-x}"><span class="katex"><span class="katex-mathml"><math
Q171: Solve for the specified variable<br>- <span
Q173: <span class="ql-formula" data-value="\frac{7 \mathrm{x}-12}{\mathrm{x}^{2}-4}-\frac{4 \mathrm{x}-6}{\mathrm{x}^{2}-4}"><span class="katex"><span class="katex-mathml"><math
Q174: <span class="ql-formula" data-value="\frac{x^{2}+9 x+18}{x+6} \div \frac{x^{2}-9}{6 x-18}"><span
Q175: The number of patients Dr. Wong can
Q176: Find the missing numerator and denominator.<br>-
Q177: Solve for the specified variable<br>- <span