Question

Решите уравнение:1/3x+5/9x=7,2

Answer 1

1/3x+5/9x=7,2,
3/9х+5/9х = 7,2,
8/9х = 7,2,
х = 7,2 : 8/9,
х = 7,2 * 9/8,
х = 8,1

Answer 2

Cпс