Amembers-onlyspeakerseriesallowspeopletojoinfor

Mathematics

1 answer:

ira [324]3 years ago

6 0

Answer: 1.5

Step-by-step explanation:

You might be interested in

Can someone explain how to get the answer,<br><img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B105%7D%7B2%7D%20" id="TexFormula1"

krek1111 [17]

$\bf \cfrac{x}{5}-\cfrac{x}{7}=3\impliedby 
\begin{array}{llll}
\textit{let's multiply both sides by }\stackrel{LCD}{35}\\
\textit{to do away with the denominators}
\end{array}
\\\\\\
35\left( \cfrac{x}{5}-\cfrac{x}{7}\right)=35(3)\implies 7x-5x=105
\\\\\\
2x=105\implies x=\cfrac{105}{2}$