a)
[tex]2x - \frac{1}{2} (3x - 2) = \frac{7}{4} - x \\ 2x - 1.5x + 1 = \frac{7}{4} - x | \times 4 \\ 8x - 6x + 4 = 7 - 4x \\ 2x + 4x = 7 - 4 \\ 6x = 3 | \div 6 \\ x = \frac{3}{6} \\ x = \frac{1}{2} [/tex]
b)
[tex]3 \frac{1}{3} x + 8 = 4 \frac{2}{5} x - 8 \\ \frac{10}{3} x + 8 = \frac{22}{5} x - 8 | \times 15 \\ 50x + 120 = 66x - 120 \\ - 16x = - 240 | \div ( - 16) \\ x = 15[/tex]
