Math problem?

Question:i know maybe its easy but i am having problems for some reason. alg 2 ?:
1/7x-1=2x=5

Answers:
1/(7x-1) = 2x = 5
1 = 2x(7x - 1) = 5(7x -1)
1 = 14x^2 - 2x = 35x -5
6 = 14x^2 - 2x +5 = 35x
0 = 14x^2 -2x -1 = 35x
14x^2 -2x -1 = 35x
14x^2 -37x -1 = 0
Factor from here
they r = but i just take alg 1 sry
Why are there 2 equal signs?

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