Question

Which value from the set {2, 3, 6, 7} makes 3x + 5 = 11 true?

Answer 1

Answer:

2

Step-by-step explanation:

3 x 2 = 6 + 5 = 11

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Answer 2

Answer:

{2}

Step-by-step explanation:

Testing out all values:

$3(2)+5=11\\\\6+5=11\\\\\boxed{11=11}$

The value of 2 works for the equation given.

All other values do not work, as we will result in a contradiction.

$3(3)+5=11\\\\9+5=11\\\\14\neq 11\\\\\\3(6)+5=11\\\\18+5=11\\\\23\neq 11\\\\\\3(7)+5=11\\\\21+5=11\\\\26\neq 11$

Hope this helps you.