Respuesta :
-10y + 18 = -3(5y-7) + 5y
-10y + 18 = -15y + 21 + 5y
-10y + 18 = -10y + 21
-10y (+10y) = 21 (-18)
0 = 4
CANNOT BE SOLVED
hope this helps
-10y + 18 = -15y + 21 + 5y
-10y + 18 = -10y + 21
-10y (+10y) = 21 (-18)
0 = 4
CANNOT BE SOLVED
hope this helps