Answer
a. 22, b. $\frac{2}{7}$, c. $x$, d. -14, e. -2.3
Work Step by Step
We know that if $a$ is a number, then $-(-a)=a$. Therefore:
a. $-(-22)=22$
b. $-(-\frac{2}{7})=\frac{2}{7}$
c. $-(-x)=x$
d. $-|-14|=-(14)=-14$
e. $-|2.3|=-(2.3)=-2.3$