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Please help and explain how to get the answer

Please help and explain how to get the answer-example-1

1 Answer

1 vote

Answer: 55

Explanation:

7x+13=9x+1

-1 -1

7x+12=9x

-7x -7x

12=2x

12/2=6

x=6

7*6+13=55

9*6+1=55

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