Subtract and simplify: (y^2 - 7y - 5) - (-3y^2 + 3y - 4)
a) 4y^2 + 4y - 9
b) 2y^2 - 10y + 4
c) 4y^2 - 10y - 1
d) 2y^2 - 7y - 9

step-by-step explanation:

answer: bea's uncle is 25 years old.

step-by-step explanation:

given the equation , we can say that the variable "x" represents the age of bea's uncle. then to find his age, we need to solve for "x":

we must add 15 to both sides of the equation:

now we need to divide both sides of the equation by 3:

therefore, we can conclude that bea's uncle is 25 years old.