Simplify the expression.

24. $x+17+12$

Real numbers are simply the combination of Whole numbers, Integers, Rational and Irrational numbers in the number system.

Suppose a, b, and c is three real numbers.

Commutative Property of Addition:

Property: a + b = b + a

If you add two real numbers in any order, the sum will always be the same.

Example: 5 + 2 = 2 + 5 = 7

Commutative property of Addition states, if you add two real numbers in any order, the sum will always be the same.

Evaluate the expression:

To evaluate the expression$x+17+12$, the term$x$is a variable. The terms17and12are constants.

Using the Commutative property of addition, adding like terms,

$\begin{array}{l}x+17+12\\ x+(17+12)\left(\text{Make\hspace{0.17em}\hspace{0.17em}a\hspace{0.17em}\hspace{0.17em}group\hspace{0.17em}\hspace{0.17em}with\hspace{0.17em}\hspace{0.17em}constant\hspace{0.17em}\hspace{0.17em}terms\hspace{0.17em}\hspace{0.17em}}\right)\\ x+(12+17)(\text{Commutative\hspace{0.17em}\hspace{0.17em}Property\hspace{0.17em}\hspace{0.17em}of\hspace{0.17em}\hspace{0.17em}Addition)}\\ x+29\end{array}$

$x+17+12=x+29$