9 years older because 18 months is equal to 1 1/2 years and 10 1/2 minus 1 1/2 is 9
Let n be the first even integer, and n+2 will be the second even integer. (Why? Think 2 and 4, 2+2=4. This is the case for every consecutive even integers).
n + 3(n+2) = 54
n + 3n + 6 = 54
4n = 48
n = 12, n+2 = 14
Answer:
Is there a photo the problem or is that just it?
Answer:
-2
Step-by-step explanation:
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