
Multiply both sides of the equation by 20, the lowest common denominator of 5,4,2.

Add 4 and 3 to get 7.

Use the distributive property to multiply −4 times x 4/7.

Multiply −4 by 4/7.
![\large\displaystyle\text{$\begin{gathered}\sf \bf{-4x-7=10(2\times2+1) \ \ \to \ \ [Multiply \ 2\times2] } \end{gathered}$}](https://tex.z-dn.net/?f=%5Clarge%5Cdisplaystyle%5Ctext%7B%24%5Cbegin%7Bgathered%7D%5Csf%20%5Cbf%7B-4x-7%3D10%282%5Ctimes2%2B1%29%20%5C%20%5C%20%5Cto%20%5C%20%5C%20%5BMultiply%20%5C%202%5Ctimes2%5D%20%7D%20%20%5Cend%7Bgathered%7D%24%7D)
![\large\displaystyle\text{$\begin{gathered}\sf \bf{-4x-7=10(4+1) \ \ \to \ \ [Add] } \end{gathered}$}](https://tex.z-dn.net/?f=%5Clarge%5Cdisplaystyle%5Ctext%7B%24%5Cbegin%7Bgathered%7D%5Csf%20%5Cbf%7B-4x-7%3D10%284%2B1%29%20%5C%20%5C%20%5Cto%20%5C%20%5C%20%5BAdd%5D%20%7D%20%20%5Cend%7Bgathered%7D%24%7D)
![\large\displaystyle\text{$\begin{gathered}\sf \bf{-4x-7=10\times5 \ \ \to \ \ [Multiply] } \end{gathered}$}](https://tex.z-dn.net/?f=%5Clarge%5Cdisplaystyle%5Ctext%7B%24%5Cbegin%7Bgathered%7D%5Csf%20%5Cbf%7B-4x-7%3D10%5Ctimes5%20%5C%20%5C%20%5Cto%20%5C%20%5C%20%5BMultiply%5D%20%7D%20%20%5Cend%7Bgathered%7D%24%7D)

Add 7 to both sides.
![\large\displaystyle\text{$\begin{gathered}\sf \bf{-4x=-50+7 \ \ \to \ \ [Add] } \end{gathered}$}](https://tex.z-dn.net/?f=%5Clarge%5Cdisplaystyle%5Ctext%7B%24%5Cbegin%7Bgathered%7D%5Csf%20%5Cbf%7B-4x%3D-50%2B7%20%5C%20%5C%20%5Cto%20%5C%20%5C%20%5BAdd%5D%20%7D%20%5Cend%7Bgathered%7D%24%7D)

Divide both sides by −4.

The fraction
can be simplified to
by removing the negative sign from the numerator and denominator.

simplify

<h2>{ Pisces04 }</h2>
From what I remember it is -x-31y
The correct answer would be B.6 and 7