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RideAnS [48]
2 years ago
12

Mario and Luigi are brothers.marios age is three times the difference between Luigis age and the number 9.if Mario is 18 years o

ld,how old is Luigi.show your work.
Mathematics
1 answer:
Black_prince [1.1K]2 years ago
8 0

To solve this, write an equation to model the situation and solve the equation.

The equation can be: 3(x-9)=27

Then solve the equation.

3x-27=18

3x=45

x=15

Luigi is 15 years old.

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