14 + 35=7(2+_) I don't understand it I need help please

Answer :

The equation is given as

14 + 35 = 7 (2 + _)

We shall represent the dash as letter y (the unknown variable)

14 + 35 = 7 (2 + y)

49 = 7 (2 + y)

Divide both sides of the equation by 7 (to eliminate it from the right side of the equation)