MTTC 103 Elementary Practice Exam 2025 – All-in-One Guide for Comprehensive Exam Success

Question: 1 / 400

If x=5, what is the value of the algebraic expression 2x - x?

5

To find the value of the algebraic expression 2x - x when x = 5, substitute 5 in place of x in the expression:

First, calculate 2x:

2x = 2 * 5 = 10.

Next, calculate x:

x = 5.

Now, substitute these values into the expression:

2x - x = 10 - 5.

Finally, perform the subtraction:

10 - 5 = 5.

Thus, the value of the expression 2x - x when x = 5 is 5. This demonstrates the correct substitution and simplification process in basic algebra, confirming the operational order and how different terms in an expression relate to each other.

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