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9966 [12]
2 years ago
15

Ariel writes this equation for the sum of the ages:

Mathematics
1 answer:
IgorC [24]2 years ago
6 0

Answer:

x=13

Step-by-step explanation:

x+x+3+x-2+3(x+3)-1=87

x+x+3+x-2+33x+9-1=87

6x+3-2+9-1=87

6x+9=87

6x=87-9

6x=78

x=13

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