Using substitution, which number from the set {6, 13, 18, 26} makes the equation 2x+5=31 true?(1 point) Responses 18 18 6 6 26 26 13
To solve the equation 2x + 5 = 31 using substitution, we can substitute each number from the set {6, 13, 18, 26} into the equation and see which one makes it true.
Substituting 6:
2(6) + 5 = 12 + 5 = 17 ≠ 31
Substituting 13:
2(13) + 5 = 26 + 5 = 31
Substituting 18:
2(18) + 5 = 36 + 5 = 41 ≠ 31
Substituting 26:
2(26) + 5 = 52 + 5 = 57 ≠ 31
Therefore, the number from the set {6, 13, 18, 26} that makes the equation 2x + 5 = 31 true is 13.