Question

Помогите
180-x=100
x-17=40
x+24=50

Answer 1

180-x=100
x= 180-100
x=80

x-17=40
x=40+17
x=57

x+24=50
x= 50-24
x=26

Answer 2

1) 180-х=100
х=180-100
х=80
2)х-17=40
х=40+17
х=57
3)х+24=50
×=50-24
х=26