Understand Solving an Equation or Inequality as a Process of Answering a Question

For each problem, substitute the given value and decide: does it make the equation or inequality true or false?

Grade 6·19 problems·~25 min·Common Core Math - Grade 6·standard·6-ee-b-5

Work through problems with immediate feedback

Recall / Warm-Up

If $n = 6$ , what is the value of $n + 4$ ?

If you substitute $n = 4$ into $2n$ , what is the result?

Which statement about the inequality symbol > is correct?

$3 > 3$ is true.

$5 > 7$ is true.

$10 > 4$ is true.

$2 > 5$ is true.

Test candidates from the set $\{5, 10, 13, 15\}$ for the equation $n - 4 = 9$ . Which value is the solution?

Which value from the set $\{4, 6, 8, 12\}$ makes $3y = 18$ true?

Does $m = 7$ make the equation $2m + 1 = 15$ true?

Yes — $2(7) + 1 = 15$ .

No — $2(7) + 1 = 16$ .

Yes — $2 + 7 + 1 = 10$ .

Cannot be determined.

From the set $\{2, 4, 6, 8, 10\}$ , which values make $2x < 12$ true?

Only $x = 2$ .

$x = 2$ and $x = 4$ only.

$x = 2$ , $x = 4$ , and $x = 6$ .

All five values.

For the inequality $x < 5$ , is $x = 5$ a solution?

Yes — 5 is the boundary, so it's included.

Yes — values close to 5 work, so 5 itself works.

No — $5 < 5$ is false because 5 is not less than 5.

It depends on the context.

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