Răspuns :
5(y-2)+3=38
5y-10+3=38
5y-7=38
5y=38+7
5y=45
y=45/5
y=9
7+2(14+y)=15
7+28+2y=15
35+2y=15
2y=15-35
2y=-20
y=-20/2
y=-10
5y-10+3=38
5y-7=38
5y=38+7
5y=45
y=45/5
y=9
7+2(14+y)=15
7+28+2y=15
35+2y=15
2y=15-35
2y=-20
y=-20/2
y=-10