Odpowiedź:
2+2y-62-5y = 2y | +62
2+2y-5y=2y+62 | -2
2y-5y=2y+60
-3y=2y+60 | -2y
-5y=60 |:(-5)
-y= -12
y=12
Zadanie
b)
2 + 2y - 62 - 5y = 2y
-3y - 60 = 2y l +60
-3y = 2y + 60 l -2y
-5y = 60 l ·(-5)
y = -12
