Răspuns :
a-b = 110
a = 4b + 20
4b + 20 - b = 110
3b + 20 = 110
3b = 90
b = 30
a = 4*30 + 20
a = 120 + 20
a = 140
a-b=110
a:b=4rest 20 rezulta ca a =4b+20
4b+20-b=110
3b=110-20
3b=90
b=90/3
b=30
a-30=110
a=140
140-30=110
a-b = 110
a = 4b + 20
4b + 20 - b = 110
3b + 20 = 110
3b = 90
b = 30
a = 4*30 + 20
a = 120 + 20
a = 140
a-b=110
a:b=4rest 20 rezulta ca a =4b+20
4b+20-b=110
3b=110-20
3b=90
b=90/3
b=30
a-30=110
a=140
140-30=110