Question

Решите уравнение!!! (700:a+20)-60=70

Answer 1

(700:а+20)-60=70
(700а+20)-60=70
720а-60=70
660а=70
а=9,42

Answer 2

$\frac{700}{a}$+20-60=70
$\frac{700}{a}$-40=70
$\frac{700}{a}$=110
a=700/110
a=70/11
a=6$\frac{4}{11}$