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
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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