Using substitution, which number from the set {6, 13, 18, 26} makes the equation 2x+5=31 true?(1 point)
Responses
18
13
26
6
To solve the equation 2x + 5 = 31 using substitution, we need to substitute each number from the given set into the equation and see which one makes the equation true.
Let's substitute 6:
2(6) + 5 = 31
12 + 5 = 31
17 = 31 (not true)
Let's substitute 13:
2(13) + 5 = 31
26 + 5 = 31
31 = 31 (true)
Let's substitute 18:
2(18) + 5 = 31
36 + 5 = 31
41 = 31 (not true)
Let's substitute 26:
2(26) + 5 = 31
52 + 5 = 31
57 = 31 (not true)
Therefore, the number from the set {6, 13, 18, 26} that makes the equation 2x + 5 = 31 true is 13.