The answer is D if you combine like terms
Answer:
D. 80
Step-by-step explanation:
multiply 40 by 2 cause its 50 percent
31=2y-5
Add 5 on both -5+5 which cancels out and 31+5 which is 36 and then divide 36 by 2 which equals to 18.
So y=18 hope this helped (':
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