Question

$$| \begin{array} { l } { 9 } \\ { 14 ( - 10 x + 5 ) = 3 ( x + 9 ) - 10 } \\ { 14 - 1 x - 5 = 3 x + 27 - 10 } \end{array} | \begin{array} { l } { 10 } \\ { 5 } \end{array}$$

Answer

r=3/70;x=-4

Solution


Solve for \(x\) in \(14+1\times x-5=3x+27-10\).
\[x=-4\]
Substitute \(x=-4\) into \(10r\times 14-(x+5)=3(x+9)-10\).
\[140r-1=5\]
Solve for \(r\) in \(140r-1=5\).
\[r=\frac{3}{70}\]
Therefore,
\[\begin{aligned}&r=\frac{3}{70}\\&x=-4\end{aligned}\]