miyaperkins04 miyaperkins04

14-09-2020
Mathematics

contestada

Robert's father is 4 years older than 3 times Robert's age. His father is 40 years old. Write the equation used to determine Robert's age.

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Ruilin0715 Ruilin0715

14-09-2020

Answer:

robert is 12 years old

Step-by-step explanation:

robert's age=x

40=3x+4

that's the equation

40=3x+4

=36=3x

x=12

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