7 to the power of 2x+1 / 49 =7 to the power of 3
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(7)^2x+1/7^2=7^3
(7)^2x+1-2=7^3
2x-1=3
2x=4
x=2
(7)^2x+1-2=7^3
2x-1=3
2x=4
x=2
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