Mario is 3 years older than Luigi. Use L to represent Luigi.
If L = 27, how old is Mario?

Answer:
Mario is 30 years old
Step-by-step explanation:
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Answer:
30
Step-by-step explanation:
age of luigi=L age of mario=M
M=L+3
Substitute 27 for L, since luigi is 27
M=27+3
M=30