Video: Evaluating if a Simple Equation or Inequality is True or False

Is the equation π‘₯ + 8 = 11 true or false if π‘₯ = 3?

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Video Transcript

Is the equation π‘₯ plus eight equals 11 true or false if π‘₯ equals three?

We’re given the equation π‘₯ plus eight equals 11. We’re also given the information π‘₯ equals three. We plug in the three value, where the π‘₯ was. Three plus eight equals 11. Does 11 equal 11? Of course.

Now, we can answer the question β€œis this equation true or false when π‘₯ equals three?” When π‘₯ equals three, the equation π‘₯ plus eight equals 11 is true.

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