Using substitution which number fromt he set 6,13,18,26 makes the equation 2x+6=31 true?
To determine which number from the set {6, 13, 18, 26} makes the equation 2x + 6 = 31 true, we can substitute these numbers one by one into the equation and check if it holds.
1. Substituting x = 6:
2(6) + 6 = 12 + 6 = 18 ≠ 31
This means that 6 does not make the equation true.
2. Substituting x = 13:
2(13) + 6 = 26 + 6 = 32 ≠ 31
Hence, 13 does not satisfy the equation.
3. Substituting x = 18:
2(18) + 6 = 36 + 6 = 42 ≠ 31
Therefore, 18 does not make the equation true.
4. Substituting x = 26:
2(26) + 6 = 52 + 6 = 58 ≠ 31
Hence, 26 also does not satisfy the given equation.
Thus, none of the numbers from {6, 13, 18, 26} solve the equation 2x + 6 = 31.