розв'яжи рівняння:
1)4-х=2 1/7
2)х-2 7/13=10 6/13
3)х+4 8/11=11
4)5 8/19-х=2 4/19
1)4-х=2 1/7
2)х-2 7/13=10 6/13
3)х+4 8/11=11
4)5 8/19-х=2 4/19
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Answers & Comments
Ответ:
x = 1 6/7
x = 14
x = 6 3/11
x = 3 4/19
Пошаговое объяснение:
4 - x = 2 1/7
x = 4 - 2 1/7
x = 1 6/7
x - 2 7/13 = 10 6/13
x = 10 6/13 + 2 7/13
x = 13 13/13
x = 14
x + 4 8/11 = 11
x = 11 - 4 8/11
x = 6 3/11
5 8/19 - x = 2 4/19
x = 5 8/19 - 2 4/19
x = 3 4/19