PSAT Math Multiple-Choice Practice Question 804
Question: 804
If 
, what is the value of 3a + 4b?
Correct Answer: C
Explanation:
(C) To format the equation like 3a + 4b, multiply the entire equation by 12:
Since there are two variables with just one equation, you need to do some sort of manipulation like this because a and b cannot be solved for individually without having another intersecting equation.
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