Exercise 1.1 FBISE NBF Solution

$(i)$ $\frac{3}{4}$

$(ii)$ $-\frac{1}{3}$

$(iii)$ $4\frac{1}{2}$

$(iv)$ $-\sqrt{8}$

$(v)$ $\sqrt{8}$

$(vi)$ $-4\frac{1}{2}$

$(vii)$ $\frac{1}{3}$

$(viii)$ $-\frac{7}{8}$

$(i)$ $1\times (y-2)=y-2$

$(ii)$ $\left(0.2\right)5=1$

$(iii)(x+2)+y=y+(x+2)$

$(iv)-\left(3b\right)+\left(3b\right)=0$

$(v)(x+5)-1=x+(5-1)$

$(vi)-3(2-y)=-6+3y$

$(i)$ $x<0$

$(ii)-3<x<3$

$(iii)x\ge -8$

$(iv)x>0$

$(v)x<-3$

$(vi)-4<x\le 4$

$(i)$ $9x=9x$

$(ii)\text{If }x+2=y$$\text{ and }$$y=2x,\text{ then }x+2=2x-3$

$(iii)\text{If 2}x+3=y,\text{ then }y=2x+3$

$(iv)\text{If }3<4,\text{ then }-3>-4$

$(v)\text{If }2y+2w=p\text{ and }p=50,$$\text{ then }$$2y+2w=50$

$(vi)\text{If }x+4>y+4,\text{ then }x>y$

$(vii)\text{If }2<5\text{ and }5<9,\text{ then }2<9$

$(viii)\text{If }-18<-16,\text{ then }9>8$