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-3x-5=10 what is x

in word form Negitve 3x subtracted by 5 = 10 solve for x

 Nov 6, 2014

Best Answer 

 #1
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$$\mathrm{\ }$$$$\underset{\,\,\,\,{\textcolor[rgb]{0.66,0.66,0.66}{\rightarrow {\mathtt{x}}}}}{{solve}}{\left(\begin{array}{l}{\mathtt{\,-\,}}{\mathtt{3}}{\mathtt{\,\times\,}}{\mathtt{x}}{\mathtt{\,-\,}}{\mathtt{5}}={\mathtt{10}}\\
{\mathtt{\,-\,}}{\mathtt{3}}{\mathtt{\,\times\,}}{\mathtt{x}}{\mathtt{\,-\,}}{\mathtt{5}}{\mathtt{\,\small\textbf+\,}}{\mathtt{5}}={\mathtt{10}}{\mathtt{\,\small\textbf+\,}}{\mathtt{5}}\\
{\mathtt{\,-\,}}\left({\mathtt{3}}{\mathtt{\,\times\,}}{\mathtt{x}}\right)={\mathtt{15}}\\
{\mathtt{\,-\,}}{\frac{{\mathtt{3}}{\mathtt{\,\times\,}}{\mathtt{x}}}{{\mathtt{3}}}}={\frac{{\mathtt{15}}}{{\mathtt{3}}}}\\
{\mathtt{x}}={\mathtt{5}}\end{array}\right)}$$

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 Nov 6, 2014
 #1
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+5
Best Answer

$$\mathrm{\ }$$$$\underset{\,\,\,\,{\textcolor[rgb]{0.66,0.66,0.66}{\rightarrow {\mathtt{x}}}}}{{solve}}{\left(\begin{array}{l}{\mathtt{\,-\,}}{\mathtt{3}}{\mathtt{\,\times\,}}{\mathtt{x}}{\mathtt{\,-\,}}{\mathtt{5}}={\mathtt{10}}\\
{\mathtt{\,-\,}}{\mathtt{3}}{\mathtt{\,\times\,}}{\mathtt{x}}{\mathtt{\,-\,}}{\mathtt{5}}{\mathtt{\,\small\textbf+\,}}{\mathtt{5}}={\mathtt{10}}{\mathtt{\,\small\textbf+\,}}{\mathtt{5}}\\
{\mathtt{\,-\,}}\left({\mathtt{3}}{\mathtt{\,\times\,}}{\mathtt{x}}\right)={\mathtt{15}}\\
{\mathtt{\,-\,}}{\frac{{\mathtt{3}}{\mathtt{\,\times\,}}{\mathtt{x}}}{{\mathtt{3}}}}={\frac{{\mathtt{15}}}{{\mathtt{3}}}}\\
{\mathtt{x}}={\mathtt{5}}\end{array}\right)}$$

Guest Nov 6, 2014

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