Question

#819

Помогите прошу

Только 1 и 2 пж

819

Answer 1

819.1
1)1+5/(1+×)=(6+×)/(1+×)
2)4/((6+×/1+×))=(4+4×)/6+×)
3)1+(4+4×)/(6+×)=(5(×+2))/(6+×)
4)5/((5(×+2)/(6+×))=(6+×)/(×+2)
5) 2=(6+×)/(×+2)
×=2