Question

1) 6,75х=2 1/4х-9 мсароаа

Answer 1

6,75x=2,25x-9
6,75x-2,25x=-9
4,5x=-9
x=-9:4,5
x=-2

Answer 2

6,75x=2 1/4x-9,
6,75x-2 1/4x=-9,
6 75/100x-2 1/4x=-9,
6 3/4x-2 1/4x=-9,
4 2/4x=-9,
4,5x=-9,
x=-9:4,5,
x=-2.
Ответ: -2