Question

помогите
реши пример
3/4 * х + 7/6 = 29/9
4/7 * х - 13/5 = 7/5
29/9 - 7/8 * х = 17/6
5/7 : х + 13/5 = 13/4

Answer 1

Ответ:

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Answer 2

Пошаговое объяснение:

3/4*х+7/6=29/9

3/4*х=29/9-7/6

3/4*х=(58-21)/18

3/4*х=37/18

Х=37/18*4/3

Х=74/27

4/7*х-13/5=7/5

4/7*х=7/5+13/5

4/7*х=20/5

4/7*х=4

Х=4:4/7

Х=4*7/4

Х=7

29/9-7/8*х=17/6

-7/8*х=17/6-29/9

-7/8*х=(51-58)/18

-7/8*х= - 7/18

Х= - 7/18:(-7/8)

Х=7/18*8/7х=4/9

5/7:х+13/5=13/4

5/7:х/1=13/4-13/4

5/7*1/х=(65-52)/20

5/7х=13/20

7х*13=5*20

91х=100

Х=100/91

Х=1 9/91