Question

4× (× + 6 ) - × = 5×

Answer 1

$4x(x + 6) - x = 5x \\ 4 {x}^{2} + 24 x - x = 5x \\ 4{x}^{2} + 18x = 0 \\ 2x(2x + 9) = 0 \\ x = 0 \: ou \: x = - \frac{9}{2}$