Question

Помогите пж решите уравнение

Answer 1

$1,9-\Big (5 \frac{3}{4}-(x+1)\Big )=3,15\\\\1,9-\Big (5,75-(x+1)\Big ) =3,15\\\\5,75-(x+1)=1,9-3,15\\\\5,75-(x+1)=-1,25\\\\x+1=5,75+1,25\\\\x+1=7\\\\x=7-1\\\\x=6$