Inactive Tutor answered • 01/04/16
Tutor
New to Wyzant
I will assume all the question marks represent x.
(1 / x) + (1 / x) = 3 / 11
Next, we use the lowest common denominator (LCD) so that both sides of the equation have the same denominator. The LCD is 11x.
(11 + 11) / 11x = (3x) / 11x
Not just equate numerators, since the denominators are already the same, and solve for x from there.
Inactive Tutor
That is why I made the assumption, because of the ambiguity of the variable representation.
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01/04/16
Inactive Tutor
01/04/16