Calculate: {\text{begin}array l 8x-5y=7 } 16x-10y=14\text{end}array .

Expression: $\frac{ 2\left( x-1 \right) }{ 3 }-\frac{ 3x+6 }{ 5 }$

To find the roots of the polynomial, set the expression equal to $0$

$\frac{ 2\left( x-1 \right) }{ 3 }-\frac{ 3x+6 }{ 5 }=0$

Solve the equation for $x$

$x=28$

The root of the polynomial is the solution of the corresponding polynomial equation

$28$