Автор - SoraChan19

решите пожалуйста два уравнения
1 )| |y| - 8  frac{1}{5}  |  = 2.3
2) |a - 5|  div ( -  2frac{14}{19}) =  -  frac{57}{104}

Ответ

Автор - сок111213

 | |y|  - 8.2|  = 2.3 \ 1) |y|  - 8.2 = 2.3 \  |y|  = 2.3 + 8.2 \  |y|  = 10.5 \  y_{1} = 10.5 :  :  :  :  :  :   y_{2} =  - 10.5 \  \ 2) |y|   - 8.2 =  - 2.3 \  |y|  =  - 2.3 + 8.2 \  |y|  = 5.9 \  y_{3} = 5.9 :  :  :  :  :  :  y_{4} =  - 5.9

Ответ : -10,5 ; -5,9 ; 5,9 ; 10,5

 |a - 5|  div ( - 2 frac{14}{19} ) =  -  frac{57}{104}  \ |a - 5|    div  ( - frac{52}{19}  )   =  -  frac{57}{104}  \  -  frac{19}{52}  times  |a - 5|  =  -  frac{57}{104}  \  -  frac{52}{19}  times ( -  frac{19}{52} ) times  |a - 5|  =  -  frac{57}{104}  times ( -  frac{52}{19} ) \  frac{52 times 19}{19 times 52}  times  |a - 5|  =  frac{57 times 52}{104 times 19}  \  |a - 5|  =  frac{3}{2}  \ |a - 5|  = 1.5 \ 1) a - 5  = 1.5 \ a = 1.5 + 5 \ a = 6.5 \  \ 2)a - 5 =  - 1.5 \ a =  - 1.5 + 5 \ a = 3.5

Ответ : 3,5 ; 6,5

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