Chapter DPT, Problem 31E

Each statement illustrates the use of one of the following real number properties or definitions. Indicate which one.

$\left(\text{A}\right)(-7)-(-5)=(-7)+[-(-5)]$

$\left(\text{B}\right)\text{ 5u + }(3v+2)=(3v+2)+5u$

$\left(\text{C}\right)(5m-2)(2m+3)=(5m-2)2m+(5m-2)3$

$\left(\text{D}\right)9.(4y)=(9.4)y$

$\left(\text{E}\right)\frac{u}{-(v-w)}=\frac{u}{w-v}$

$\left(\text{F}\right)(x-y)+0=(x-y)$