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strojnjashka [21]
2 years ago
11

Genevieve is 3 years older than twice her brother’s age. Genevieve is 21 years old. Write an equation to find her brother’s age.

Mathematics
2 answers:
Simora [160]2 years ago
7 0

Answer:

her brother is 9

Step-by-step explanation:

21-3=18   18 divided by 2 = 9

adoni [48]2 years ago
3 0

Answer:

Genevieve's brother is 9 years old

Step-by-step explanation:

The equation (Genevieve "G", the brother "B")

G=2B+3

21=2B+3

21-3=2B

18=2B

\frac{18}{2} =B

9=B

Hope this helps

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