Question

Match the following expressions with the values if $x=1$ and $y=0$.

• A. 2
• B. 0.0
• C. -1
• D. -2

Answer 1

$x+(y+1)=1+(0+1)=1+1=2x-(y+1)=1-(0+1)=1-1=01-(1+x-y)=1-(1+1-0)=1-2=-1-(x+y+1)=-(1+0+1)=-2$