(x+8 17/36)+7 31/36=25 1/36

$(x + 8\frac{17}{36}) + 7 \frac{31}{36} = 25 \frac{1}{36} \\ \\ x + 8\frac{17}{36} = 25 \frac{1}{36} -7 \frac{31}{36} \\ \\ x + 8\frac{17}{36} = 24 \frac{37}{36} -7 \frac{31}{36} \\ \\ x + 8\frac{17}{36} = 17 \frac{6}{36} \\ \\ x = 17 \frac{6}{36} - 8\frac{17}{36} \\ \\ x = 16 \frac{42}{36} - 8\frac{17}{36} \\ \\ x=8 \frac{25}{36} \\ \\ ( 16\frac{25}{36} +8 \frac{17}{36}) + 7 \frac{31}{36} = 25 \frac{1}{36} \\ \\25 \frac{1}{36} = 25 \frac{1}{36}$
Ответ: x = $8 \frac{25}{36}$