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Questions: Algebra BusinessCalculus
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Solve \(\displaystyle \frac{5}{x - 8}=- \frac{6}{x - 4}\).
The LCD is \(\displaystyle \left(x - 8\right) \left(x - 4\right)\). Multiplying by the LCD to clear the fractions gives \(\displaystyle 5 x - 20 = 48 - 6 x\). Isloating \(\displaystyle x\) gives \(\displaystyle x = \frac{68}{11}\).
\begin{question}Solve $\frac{5}{x - 8}=- \frac{6}{x - 4}$. \soln{9cm}{The LCD is $\left(x - 8\right) \left(x - 4\right)$. Multiplying by the LCD to clear the fractions gives $5 x - 20 = 48 - 6 x$. Isloating $x$ gives $x = \frac{68}{11}$. } \end{question}
\documentclass{article} \usepackage{tikz} \usepackage{amsmath} \usepackage[margin=2cm]{geometry} \usepackage{tcolorbox} \newcounter{ExamNumber} \newcounter{questioncount} \stepcounter{questioncount} \newenvironment{question}{{\noindent\bfseries Question \arabic{questioncount}.}}{\stepcounter{questioncount}} \renewcommand{\labelenumi}{{\bfseries (\alph{enumi})}} \newif\ifShowSolution \newcommand{\soln}[2]{% \ifShowSolution% \noindent\begin{tcolorbox}[colframe=blue,title=Solution]#2\end{tcolorbox}\else% \vspace{#1}% \fi% }% \newcommand{\hideifShowSolution}[1]{% \ifShowSolution% % \else% #1% \fi% }% \everymath{\displaystyle} \ShowSolutiontrue \begin{document}\begin{question}(10pts) The question goes here! \soln{9cm}{The solution goes here.} \end{question}\end{document}
<p> <p>Solve <img class="equation_image" title=" \displaystyle \frac{5}{x - 8}=- \frac{6}{x - 4} " src="/equation_images/%20%5Cdisplaystyle%20%5Cfrac%7B5%7D%7Bx%20-%208%7D%3D-%20%5Cfrac%7B6%7D%7Bx%20-%204%7D%20" alt="LaTeX: \displaystyle \frac{5}{x - 8}=- \frac{6}{x - 4} " data-equation-content=" \displaystyle \frac{5}{x - 8}=- \frac{6}{x - 4} " /> .</p> </p>
<p> <p>The LCD is <img class="equation_image" title=" \displaystyle \left(x - 8\right) \left(x - 4\right) " src="/equation_images/%20%5Cdisplaystyle%20%5Cleft%28x%20-%208%5Cright%29%20%5Cleft%28x%20-%204%5Cright%29%20" alt="LaTeX: \displaystyle \left(x - 8\right) \left(x - 4\right) " data-equation-content=" \displaystyle \left(x - 8\right) \left(x - 4\right) " /> . Multiplying by the LCD to clear the fractions gives <img class="equation_image" title=" \displaystyle 5 x - 20 = 48 - 6 x " src="/equation_images/%20%5Cdisplaystyle%205%20x%20-%2020%20%3D%2048%20-%206%20x%20" alt="LaTeX: \displaystyle 5 x - 20 = 48 - 6 x " data-equation-content=" \displaystyle 5 x - 20 = 48 - 6 x " /> . Isloating <img class="equation_image" title=" \displaystyle x " src="/equation_images/%20%5Cdisplaystyle%20x%20" alt="LaTeX: \displaystyle x " data-equation-content=" \displaystyle x " /> gives <img class="equation_image" title=" \displaystyle x = \frac{68}{11} " src="/equation_images/%20%5Cdisplaystyle%20x%20%3D%20%5Cfrac%7B68%7D%7B11%7D%20" alt="LaTeX: \displaystyle x = \frac{68}{11} " data-equation-content=" \displaystyle x = \frac{68}{11} " /> . </p> </p>