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Dmitrij [34]
3 years ago
15

A + b= 7a - b = 3Plz help I'm confuse​

Mathematics
1 answer:
Maslowich3 years ago
6 0

Answer:

a=5; b=2

Step-by-step explanation:

a = 3 + b \\ 3 + b + b = 7 \\ b = 2

a = 2 + 3 = 5

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