Ответ:
2 3/4Х — Х +1 1/16Х=
11/4Х- 16/16Х+17/16Х=
44/16Х+1/16Х= 45/16Х
если Х=32/45, то
45/16 *32/45=2
Ответ:
[tex]2\frac{3}{4}x-x+1\frac{1}{16}x=2\frac{3x}{4}-x+1\frac{1x}{16}=\frac{11x}{4}-x+\frac{17x}{16}= \frac{44x-16x+17x}{16}=\frac{45x}{16}=\frac{45}{16}x[/tex]
при [tex]x=\frac{32}{45}[/tex]; [tex]\frac{45}{16}\cdot\frac{32}{45}=\frac{32}{16}=2[/tex]