1) х-7 8/11=2 5/11 2) 3 7/17 - (х+1 4/17) = 1 9/17

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6 июня, 09:17

1) х-7 8/11=2 5/11 2) 3 7/17 - (х+1 4/17) = 1 9/17

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Мария Агеева · Answer 1

1) х - 7 8/11 = 2 5/11;

х - 85/11 = 27/11;

х = 27/11 + 85/11;

х = 112/11;

112/11 - 7 8/11 = 2 5/11;

112/11 - 85/11 = 27/11;

27/11 = 27/11.

2) 3 7/17 - (х + 1 4/17) = 1 9/17;

58/17 - (х + 21/17) = 26/17;

-х - 21/17 = 26/17 - 58/17;

-х - 21/17 = - 32/17;

-х = - 32/17 + 21/17;

-х = - 11/17;

-х * (-1) = - 11/17 * (-1);

х = 11/17;

3 7/17 - (11/17 + 1 4/17) = 1 9/17;

58/17 - (11/17 + 21/17) = 26/17;

58/17 - 32/17 = 26/17;

26/17 = 26/17.