Автор - gabiko82

Помогите решить 164,спасибо

Ответ

Автор - alesyaperova

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}

Ответ

Автор - laura200713
{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

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