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[tex]6x - 4 = 3x + 5 \\ 6x - 3x = 5 + 4 \\ 3x = 9 \\ x = 3[/tex]
[tex] - (3x - 4) = 4(5 - x) \\ - 3x + 4 = 20 - 4x \\ - 3x + 4x = 20 - 4 \\ x = 16[/tex]
[tex]3x + \frac{7}{5} - 7x - \frac{2}{10} = x + 5 \\ 3x - 7x - x = 5 - \frac{7}{5} + \frac{2}{10} \\ - 5x = 5 - \frac{14}{10} + \frac{2}{10} \\ - 5x = 5 - \frac{16}{10} \\ - 5x = 5 - 1.6 \\ - 5x = 3.4 \\ x = - 0.68[/tex]
[tex] {x}^{2} - (x - 3)(x - 2) = 2 + 5x \\ {x}^{2} - ( {x}^{2} - 2x - 3x + 6) = 2 + 5x \\ {x}^{2} - {x}^{2} + 2x + 3x - 6 = 2 + 5x \\ 2x + 3x - 5x = 2 + 6 \\ 0 = 8[/tex]
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