PLEASE HELP!Beth is solving this equation: 1/3 + 3 = 3/x


She says “I can multiply both sides by x and get the linear equation 1 + 3x = 3, whose solution is x = 2/3 ."


Which of the following statements makes this a correct argument, or shows that it is incorrect? Select all that apply.


a You cannot multiply both sides by x because you do not know what x is.


b After multiplying both sides by x you need to subtract 1 from both sides.


c You can assume x does not equal 0 because both sides are undefined is x = 0.


d The equation is not linear, so you cannot use the methods normally used for solving linear equations.