Question

Помогите пж номер 92 ПЖ

Answer 1

1)11/7=2-х/5= 7(2-х)=11×5

14-7х=55

14-55=7х

-41=7х

х=-41/7

2)3х/5=6+х/3=9х=30+5х

-30=-9х+5х

-30=-4х

х=-30/-4

х=7,5

3)х/3+х/5=8

8х/15=8/1

8х=320

х=15

4)у/3+у/4=14

7у/12=14/1

7у=168

у=24