If $x=2$ and $v=3 x$, then the value of $(2 v-5)-(2 x-5)$ is
(A) 2
(B) 8
(C) -2
(D) -7
(E) 6
Since $v=3 x$ and $x=2$, then $v=3 \cdot 2=6$.

Therefore, $(2 v-5)-(2 x-5)=(2 \cdot 6-5)-(2 \cdot 2-5)=7-(-1)=8$.

ANsWER: (B)