Question

Решите уровнение:
2/7x=2 2/7   (2 и x это целое число)
3/5y=2 9/10 - 1/5
3/7а+2/5=1
3 1/3:r=1 1/3 : 2
y :1 1/2 =2 1/3*1/3
2/7х+3/7х = 2 7/14
m+3/8m=1/4
у - 2/9у = 4 2/3
2/5z +2/3 - 7/15 = 2 1/2

Answer 1

2/7x=2 2/7
х=167*72
х=8

3/5y=2 9/10 - 1/5
35у=2910-210
35у=2710
у=2710*53
у=92=4 12

3/7а+2/5=1
37а=1-25
37а=55-25
37а=35
а=35*73
а=75=1 25

3 1/3:r=1 1/3 : 2
103:r=43*12
103:r=23
r=103*32
r=5

y :1 1/2 =2 1/3*1/3
у:32=73*13
у:32=79
у=79*32
у=2118=1 16

2/7х+3/7х = 2 7/14
57х=3514
х=3514*75
х=72=3 12
m+3/8m=1/4
88m+38m=14
118m=14
m=14*811
m=211

у - 2/9у = 4 2/3
99у-29у=143
79у=143
у=143*97
у=6

2/5z +2/3 - 7/15 = 2 1/2
25z=52-23+715
25z=7530-2030+1430
25z=6930
z=6930*52
z=234=5 34