Question

(x+2 5) :20  +7 1  =7 1
        6             5      2

Answer 1

$(x + 2 frac{5}{6} ) / 20 + 7 frac{1}{5} = 7 frac{1}{2}$

$(x + 2 frac{5}{6} ) / 20 = 7 frac{1}{2} - 7 frac{1}{5}$

$(x + 2 frac{5}{6} ) / 20 = frac{75}{10} - frac{72}{10}$

$(x + 2 frac{5}{6} ) / 20 = frac{3}{10}$

$x+2 frac{5}{6} = frac{3}{10} *20$

$x + 2 frac{5}{6} = 6$

$x = 6 - 2 frac{5}{6}$

$x = frac{6}{1} - frac{17}{6} = frac{36-17}{6} = frac{19}{6} = 3 frac{1}{6}$