Question

Помогите решить 164,спасибо

Answer 1

$a)x - frac{1}{4} = 7 frac{1}{3} - 3 frac{1}{12} = \ = 7 frac{4}{12} - 3 frac{1}{12} = 4 frac{3}{12} = 4 frac{1}{4}$

$x = 4 frac{1}{4} + frac{1}{4} \ x = 4 frac{2}{4} = 2 frac{1}{2} = 2.5$

$b)x + frac{1}{4} = 6 frac{2}{3} - 2 frac{1}{6} = \ 6 frac{4}{6} - 2 frac{1}{6} = 4 frac{3}{6} = 4 frac{1}{2}$

$x = 4 frac{1}{2} - frac{1}{4} = 4 frac{2}{4} - frac{1}{4} \ x = 4 frac{1}{4}$

Answer 2

{x-1/4)+3;1/12=7;1/3
x-1/4=7;1/3-3;1/12
x-1/4=4;3/12
x=1/4+4;3/12
x=4;6/12