Video: Evaluating Algebraic Expressions

Evaluate π‘š + π‘˜, given that π‘š = 7 and π‘˜ = 15.

01:09

Video Transcript

Evaluate π‘š plus π‘˜, given that π‘š equals seven and π‘˜ equals 15.

We want to add π‘š and π‘˜ together. π‘š equals seven and π‘˜ equals 15. What we do now is substitute the seven for the π‘š. We can write seven in place of the π‘š. Our addition symbol doesn’t change. We just bring that down.

And then, we’ll substitute 15 for π‘˜. In place of the letter π‘˜ in our problem, we write 15. And then we add them together. Seven plus 15 equals 22. That means that, in this case, π‘š plus π‘˜ equals 22.

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