Question

Реши уравнения
70+x =24X 4
y-120=280:7
240-x =400:10
y +60=80x 7

Answer 1

1) 70+x=24*4
70+x=96
x=96-70
x=26
2) y-120=40
y=40+120
y=160
3) 240-x=40
x=240-40
x=200
4) y+60=560
y=560-60
y=500