Beth is solving this equation: 1/x + 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). The equation is not linear, so you cannot use the methods normally used for solving linear equations.

B). You can assume x ≠ 0 because both sides are undefined if x = 0.

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

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