Question

2. Розв'яжи рівняння
а)1/2+х=5/6
б)5/6-х=1/3
в)х-1/5=3/10
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Answer 1

$\frac{1}{2} + x = \frac{5}{6} \\ x = \frac{5}{6} - \frac{1}{2} \\ x = \frac{5}{6} - \frac{3}{6} \\ x = \frac{2}{6} \\ x = \frac{1}{3}$

$\frac{5}{6} - x = \frac{1}{3} \\ x = \frac{5}{6} - \frac{1}{3} \\ x = \frac{5}{6} - \frac{2}{6} \\ x = \frac{3}{6} \\ x = \frac{1}{2}$

$x - \frac{1}{5} = \frac{3}{10} \\ x = \frac{3}{10} + \frac{1}{5} \\ x = \frac{3}{10} + \frac{2}{10} \\ x = \frac{5}{10 } \\ x = \frac{1}{2}$