1) 8x - x = 3 + 7/97x = 3 + 7/97x = 26/9x = 26/9 / 7x = 26/63
Ответ: x = 26/63
2) 6 + 1/12 - k = 2 + 5/126 - 2 + 1/12 - 5/12 = k4 + 1/12 - 5/12 = k4 - 4/12 = k3 + 8/12 = k3 + 2/3 = k9/3 + 2/3 = k11/3 = k
Ответ: k = 11/3
1) 8x - x = 3 + 7/9
7x = 3 + 7/9
7x = 26/9
x = 26/9 / 7
x = 26/63
Ответ: x = 26/63
2) 6 + 1/12 - k = 2 + 5/12
6 - 2 + 1/12 - 5/12 = k
4 + 1/12 - 5/12 = k
4 - 4/12 = k
3 + 8/12 = k
3 + 2/3 = k
9/3 + 2/3 = k
11/3 = k
Ответ: k = 11/3