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5^3x-4 = 5^-2
3x - 4 = -2
3x = -2 + 4
3x = 2
x = 2/3
Alternativa c)
;)
3x-4 = 2
3x = 2+4
3x = 6
x = 6/3
x = 2
el valor de x es 2