Question

Найдите корень уравнения : 2/5 - у =-3/7 А +4 5/12 = -3 1/9

Answer 1

2/5-у=-3.7
2/5+3.7=у
У=2/5+3.7=2/5+3 7/10=4/10+37/10=41/10=4 1/10
У=4 1/10 или 4.1

А+4 5/12=-3 1/9
А=-3 1/9-4 5/12=-28/9-53/12=-112/36-159/36=-271/36=-7 19/36
А=-7 19/36