Question

3x3+a=9x3+6y

Which of the following expressions is equivalent to a
in the given equation?


Responses

A 2y
2 y

B 3y
3 y

C 6y
6 y

D 6x

Answer 1

a = 6x^3+6y

Explanation:

I will assume that the equation is meant to read as:

3x^3+a=9x^3+6y

(the 3's were made into exponents).

3x^3+a=9x^3+6y

a = 6x^3+6y [subtract 3x^3 from both sides]

The answer options don't seem complete. Please check.