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27³ · 2x - 3⁹ = 3¹⁰ · x + 2 · 3⁹
(3³)³*2x - 3⁹ = 3¹⁰*x + 2*3⁹
3⁹*2x -3⁹ = 3⁹*3*x + 2*3⁹
3⁹*( 2x -1) = 3⁹*(3x +2) /:3⁹
2x -1 = 3x +2
2x -3x = 2 +1
-x = 3 /:(-1)
x = -3
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27³ · 2x - 3⁹ = 3¹⁰ · x + 2 · 3⁹
(3³)³*2x - 3⁹ = 3¹⁰*x + 2*3⁹
3⁹*2x -3⁹ = 3⁹*3*x + 2*3⁹
3⁹*( 2x -1) = 3⁹*(3x +2) /:3⁹
2x -1 = 3x +2
2x -3x = 2 +1
-x = 3 /:(-1)
x = -3