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10/09/2024 06:49:20

Tìm x∈N , biết.a) 3x+1:34=81b) 3x+3.3x+1=729c) 2x+3.2x=128d) 23+3x=56:53e) 2x+2x+4=272


Tìm x∈N , biết.

a) 3x+1:34=81

b) 3x+3.3x+1=729

c) 2x+3.2x=128

d) 23+3x=56:53

e) 2x+2x+4=272

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