Question

1/3z-0,3z=-0,6
Решите уровнение

Answer 1

$frac{z}{3} - frac{3z}{10} = - frac{6}{10} \ frac{10z - 9z}{30} = - frac{6}{10} \ frac{z}{30} = frac{ - 6}{10} \ z = frac{ - 6 times 30}{10} = - frac{180}{10} = - 18$