Question

как решить?
7у-1-у+3=2у+20

Answer 1

7у-1-у+3=2у+20
7y-y-2y = 20+1-3
4y = 18
y = 4,5

Answer 2

6у-2у=24

Answer 3

у=24:4

Answer 4

7y-y-1+3=2y+20
6y+2=2y+20
6y-2y=20-2
4y=18
y=4.5