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My sister is 18 years old. My brother says that his age minus nineteen Is equal
to my sister's age. How old is my brother?
Enter an equation, using b as your variable, to find how old my brother Is.

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Respuesta :

Answer: 18

Step-by-step explanation:

Sisters age = b

Brothers age = b + 19

Answer:

37 years old

Step-by-step explanation:

lets keep the brother's age as b.

so using the equation:

b-19=18(add 19 on both sides)

b=37

So her brother is 37 years old

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