Question

5,75-(x-4 5/7)=2 1/12 решить уравнение

Answer 1

$5and\frac{3}{4} -(x-\frac{4*7+5}{7} )=\frac{2*12+1}{12} ;\\\frac{5*4+3}{4} -(x-\frac{33}{7} )=\frac{25}{12} ;\\\frac{23}{4} +\frac{33}{7} -\frac{25}{12}=x;\\ x=\frac{23*7+33*4}{28}-\frac{25}{12};\\ x=\frac{293*3-25*7}{28*3} ;\\x=\frac{879-175}{84} ;\\x=\frac{352*2}{42*2} =\frac{176}{21};\\ x=8and\frac{8}{21}$

ответ: 8 8/21 или 176/21