Răspuns :
4x+5=17=>4x=17-5=>4x=12=>x=12:4=>x=3
....
116-4x=80=>4x=116-80=>4x=36=>x=36:4=>x=9.
4x+5=17
4x=17-5
4x=12
x=12:4
x=3
V:4*3+5=12+5=17
116-4x=80
4x=116-80
4x=36
x=36:4
x=9
V:116-4*9=116-36=80
sper ca te am ajutat
4x=17-5
4x=12
x=12:4
x=3
V:4*3+5=12+5=17
116-4x=80
4x=116-80
4x=36
x=36:4
x=9
V:116-4*9=116-36=80
sper ca te am ajutat