10БАЛЛОВ решите уравнения

Question

10БАЛЛОВ решите уравнения

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Answer 1

1)(х - 3 9/13) + 5 10/13=12 4/13
x-3 9/13= 12 4/13 - 5 10/13
x-3 9/13=11 5/13
x= 11 5/13+ 3 9/13
x=15 1/13
2)(3 9/16- y)+4 9/16=5 7/16
3 9/16 - y = 5 7/16 - 4 9/16
3 9/16 - y =14/16= 7/8
y = 3 9/16 - 7/8= 3 9/16 - 14/16
y= 2/11/16

Comments

3)13 16/27+(x-2 17/27=30 5/27

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x-2 17/27= 30 5/27- 13 16/27

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x-2 17/27=16 16/27

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x= 16 16/27+ 2 17/27

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x=18 6/27

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4)(y- 2 4/25) + 4 7/25= 14 6/25

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y- 2 4/25= 14 6 /25 - 4 7/25

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y-2 4/25=9 24/25

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y= 9 24/25+ 2 4/25

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y= 11 3/25