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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.

Write the equation again and now solve to tell me how old her brother is. Please tell me how you know.

Respuesta :

saludfinanciera7p

Answer:

her brother is 9

Step-by-step explanation:

21-3=18   18 divided by 2 = 9

profereyes12122

Answer:

Genevieve's brother is 9 years old

Step-by-step explanation:

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

[tex]G=2B+3[/tex]

[tex]21=2B+3[/tex]

[tex]21-3=2B[/tex]

[tex]18=2B[/tex]

[tex]\frac{18}{2} =B[/tex]

[tex]9=B[/tex]

Hope this helps

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