Calcule o valor de 2x +1 =÷8
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![2x + 1 = 8 \\ 2x = 8 - 1 \\ 2x = 7 \\ x = \frac{7}{2} \\ x = 3.5 \\ \\ \\ \\ = = = = = = = = = = 2x + 1 = 8 \\ 2x = 8 - 1 \\ 2x = 7 \\ x = \frac{7}{2} \\ x = 3.5 \\ \\ \\ \\ = = = = = = = = = =](https://tex.z-dn.net/?f=2x+%2B+1+%3D+8+%5C%5C+2x+%3D+8+-+1+%5C%5C+2x+%3D+7+%5C%5C+x+%3D++%5Cfrac%7B7%7D%7B2%7D++%5C%5C+x+%3D+3.5+%5C%5C++%5C%5C++%5C%5C++%5C%5C++%3D++%3D++%3D++%3D++%3D++%3D++%3D++%3D++%3D++%3D+)
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