Using substitution, which number from the set {6, 13, 18, 26} makes the equation 2x+5=31 true?(1 point)

Question

Responses

26
26

13
13

6
6

18

Answer 1

To find the solution, we can substitute each number from the set into the equation and see which one makes the equation true.

Let's substitute the numbers one by one:

Substituting 6 into the equation:

2(6) + 5 = 31
12 + 5 = 31
17 ≠ 31

Substituting 13 into the equation:

2(13) + 5 = 31
26 + 5 = 31
31 = 31

Substituting 18 into the equation:

2(18) + 5 = 31
36 + 5 = 31
41 ≠ 31

Substituting 26 into the equation:

2(26) + 5 = 31
52 + 5 = 31
57 ≠ 31

Therefore, the number from the set {6, 13, 18, 26} that makes the equation 2x+5=31 true is 13.