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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.
Sagot :
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