Question

помогите плиз
решить уравнения
плиз
дам 15 балов ✨

Answer 1

1)
$17n - 11n - 2n = 511 \ 4n = 511 \ n = frac{511}{4}$
2)
$23a - 8a - 13a = 33 \ 2a = 33 \ a = frac{33}{2}$
3)
$4x + 6x - x = 21.6 \ 9x = 21.6 \ x =21.6 div 9 = 2.4$
4)
$7y - y + 3y = 61.2 \ 9y = 61.2 \ y = 61.2 div 9 = 6.8$

Answer 2

https://znanija.com/task/29493275