Algebra Practice Test

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If x = -11 and y = 11, what is the evaluation of x - y?

The correct answer is: -22

To evaluate the expression $ x - y $ given that $ x = -11 $ and $ y = 11 $, you substitute these values into the expression. Starting with the expression: \[ x - y = -11 - 11 \] When you subtract $ 11 $ from $ -11 $, you are essentially adding a negative number: \[ -11 - 11 = -22 \] So, the result of $ x - y $ is $ -22 $. This outcome reflects that subtracting a positive number from a negative number results in a more negative value, which is consistent with the rules of arithmetic. Therefore, the evaluation of $ x - y $ is indeed $ -22 $.