trishagauravoxo1j7
trishagauravoxo1j7
13-12-2017
Mathematics
contestada
Solve for x 27=9^x-1
Respuesta :
andriansp
andriansp
13-12-2017
27 = 9^x-1
3^3 = 9^x-1
3^3 = 3^2(x-1)
3 = 2 (x-1)
1.5 = x-1
x = 2.5
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