## Introductory Algebra for College Students (7th Edition)

$17+x$
Commutative properties: $a+b=b+a,\qquad ab=ba$ Associative properties:$a+(b+c)=(a+b)+c,\qquad a(bc)=(ab)c$ Distributive property: $\quad A(x+y)=Ax+Ay$ --- $7+(x+10)=\qquad$ ...commutative property: $x$ and $10$ can change places $=7+(10+x)=$ ...associative property: we can change groupings, $=(7+10)+x$ = $17+x$