Question: If $ x=3-a $ and $ y=4a+13, $ then for what value of $ a, $ $ x $ and $ y $ are equal?
Options:
A) $ -4 $
B) $ -7 $
C) $ -5 $
D) $ -2 $
Show Answer
Answer:
Correct Answer: D
Solution:
- If $ x=y, $ then $ 3-a=4a+13 $
$ \Rightarrow $ $ 5a=-10 $
$ \Rightarrow $ $ a=-2 $