Question

решите
уравнение
(2,61-4z):0,03+4,6=90

Answer 1

(2,61-4z):0,03=90-4,6
(2,61-4z):0,03=85,4
2,61-4z=85,4*0,03
2,61-4z=2,562
4z=2,61-2,562
4z=0,048
z=0,048:4
z=0,012