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