sat suite question viewer
Algebra
/ Linear equations in one variable
Difficulty: Easy
If 
, what is the value of x ?
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Explanation
Choice C is correct. To make it easier to add like terms on the left-hand side of the given equation, both sides of the equation can be multiplied by 6, which is the lowest common denominator of 
and 
. This yields 
, which can be rewritten as 
. Dividing both sides of this equation by 2 yields 
.
Choice A is incorrect and may result from subtracting the denominators instead of numerators with common denominators to get 
, rather than 
, on the left-hand side of the equation. Choice B is incorrect and may result from rewriting the given equation as 
instead of . Choice D is incorrect and may result from conceptual or computational errors.