Question

Решите уравнения 1) х+7/12=3/4 3) х-3/5=3/8 5) у+2/7=1/3 7) у-3/8=5/32

Answer 1

1) $x + \frac{7}{12} = \frac{3}{4} \\x = \frac{3}{4} - \frac{7}{12}\\x = \frac{9}{12} - \frac{7}{12}\\x = \frac{2}{12}\\x = \frac{1}{6}$

3) $x - \frac{3}{5} = \frac{3}{8}\\x = \frac{3}{5} + \frac{3}{8}\\x = \frac{24}{40} + \frac{15}{40}\\x = \frac{39}{40}$

5) $y + \frac{2}{7} = \frac{1}{3} \\y = \frac{1}{3} - \frac{2}{7}\\y = \frac{7}{21} - \frac{6}{21}\\y = \frac{1}{21}$

7) $y - \frac{3}{8}  = \frac{5}{32} \\y = \frac{5}{32} + \frac{3}{8}\\y = \frac{5}{32} + \frac{12}{32}\\y = \frac{17}{32}$