Chapter 1.3, Problem 5LC

Solution

To state: The expression $y-x$ for the values $x=3\text{and}y=-2$ .

The resultant answer is $-5$ .

Given information:

The given expression is $y-x$ .

Explanation:

A mathematical phrase that includes a combination of numbers and variables using the mathematical operations is known as an algebraic expression.

Now consider the given expression $y-x$ :

Substitute the values of variable x and y as $3\text{and}-2$ into the given expression,

  $\left(-2\right)-\left(3\right)$

Remove the grouping symbols,

  $-2-3$

Now subtract from left to right,

  $-5$

Therefore, $-5$ is the resultant value of the expression $y-x$ .