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My sister is 12 years old. My brother says that his age minus twelve is equal to my sister's age. How old is my brother? Enter an equation, using as your variable, to find how old my brother is. The equation
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My sister is 12 years old. My brother says that his age minus twelve is equal to my sister's age. How old is my brother?

Enter an equation, using as your variable, to find how old my brother is.

The equation is

User Sebastian Dengler
by
4.4k points

1 Answer

6 votes

x-12=12

x=24

your brother is 24 years old

User SunnyRed
by
4.4k points
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