Question

задание 9.помогите пожалуйста!!!

Answer 1

 $1) n=3 \\ \\ \frac{9+1}{10} = \frac{10}{10} \\ \\ 2)n=2 \\ \\ \frac{3*2+1}{10} = \frac{6+1}{10}= \frac{7}{10} \\ \\ 3) n=3\\ \\ \frac{3n+1}{10} = \frac{3*3+1}{10} = \frac{10}{10} =1$

Answer 2

1. 3n+1/10=10/10
3n=9
n=3
10/10=10/10

2. 3n+1/10
n=2
6+1/10=7/10

3. 3n+1/10
3n+1=10
3n=9
n=3