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egoroff_w [7]
3 years ago
14

Please answer correctly !!!!!!! Will mark brainliest !!!!!!!!!!

Mathematics
1 answer:
astra-53 [7]3 years ago
6 0

Answer:

9 years.

Step-by-step explanation:

Make x the number of years passed.

\frac{39+x}{3+x}=4

12 + 4x = 39 + x

27 = 3x

x = 9

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Hi there

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