Chapter 11, Problem 3CR

(a)

To determine

To name the property illustrated by below true statement

  $3\left(x+y\right)=3·x+3·y$

(b)

To determine

To name the property illustrated by below true statement

  $\left(x+7\right)+9=x+\left(7+9\right)$

(c)

To determine

To name the property illustrated by below true statement

  $\left(b+0\right)+3=b+3$

(d)

To determine

To name the property illustrated by below true statement

  $2·\left(z·5\right)=2·\left(5·z\right)$

(e)

To determine

To name the property illustrated by below true statement

  $-2·\left(-\frac{1}{2}\right)=1$

(f)

To determine

To name the property illustrated by below true statement

  $-2+2=0$

(g)

To determine

To name the property illustrated by below true statement

  $-6·\left(y·2\right)=\left(-6·2\right)·y$