2·3^(x+1)−4·3^(x−2)=150

oobleck oobleck answered
4 years ago

2·3^(x+1)−4·3^(x−2)=150

2*3^3*3^(x-2) - 4*3^(x-2) = 150
(54 - 4) 3^(x-2) = 150
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