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salut, rezolvati ecuatia : 8 la 4 -x =2 la 2x+2 ajutatima !!!

Răspuns :

8^(4-x) = 2^(2x + 2) => (2^3)^(4-x) = 2^(2x + 2) => 2^(12 - 3x) = 2^(2x + 2) => 12 - 3x = 2x + 2 => 5x = 10 => x =2