HELP BRAINLEST !! for what values of the variable do these fractions exist (y^(2)-1)/(y)+(y)/(y-3) format: for example (x>3 or x<9)

step-by-step explanation:

you divide the denominator by the numerator on both sides and if the quotients are equal then the fractions are equivalent

b

step-by-step explanation:

a difference is the result of subtraction. while each of these expressions has subtraction in it, a difference will be the result when subtraction is the last operation applied in the order of operations for the expression. this means subtraction must be outside of the parenthesis. only b has this.