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