PSAT Math Multiple-Choice Question 320: Answer and Explanation
Question: 320
What is the value of z in the equation above?
- A.
- B.
- C.
- D.
Correct Answer: A
Explanation:
A
Difficulty: Medium
Category: Solving Equations
Getting to the Answer: Simplify the numerators as much as possible, then isolate the variable. Begin by combining like terms on both sides of the equation. Once complete, cross-multiply and solve for z:
Choice (A) is correct.
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