Question

решите уравнение (1/4+3/4х)÷0,45=25/36 ответ д/быть 1/12

Answer 1

(1/4+3/4х)/0,45=25/361/4+3/4х=25/36*0,451/4+3/4х=5/16
3/4х=5/16-1/4
3/4х=1/16
х=1/12