Question

решите уравнение:
$\frac{x}{5} + \frac{x}{9} = - \frac{14}{15}$
1)-3
2)1
3)3
4)7​

Answer 1

$\frac{x}{5}+\frac{x}{9} =-\frac{14}{15}\\\\\frac{9x+5x}{45}=-\frac{14}{15}\\\\\frac{14x}{45}=-\frac{42}{45}\\\\14x=-42\\\\x=-3$