Question

Помогите решить уравнения!
1) 5n+(13,4-2n)=16,4n
2)12-(4х+5)=7+x

Answer 1

1)5n+13.4-2n=16.4n
3n-16.4n=-13.4
-13.4n=-13.4
n=-13.4:(-13.4)
n=1