Five times a number, subtracted from fourteen, is triple the number. Find the number

Mathematics

1 answer:

Reptile [31]3 years ago

5 0

Let x=number

14-5x=3x
5x to other side
14=8x
Divide 8
14/8=x
1 6/8=x
1 3/4=x
1.75=x

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$\bf \cfrac{3}{c^2-4c}-\cfrac{9}{2c^2+3c}=\cfrac{2}{2c^2-5c-12}\\\\\\ 
\begin{cases}
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&(2c+3)(c-4)
\end{cases}\\\\
-------------------------------\\\\
\textit{therefore, our LCD for the \underline{left-side} will have to be }\underline{c(c-4)(2c+3)}\\\\
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