To determine which number from the set [6,12,13,26] makes the equation 3x-10=26 true, we substitute each number into the equation and check if the resulting statement is true.
Substituting 6:
3(6) - 10 = 18 - 10 = 8 (not equal to 26)
Substituting 12:
3(12) - 10 = 36 - 10 = 26 (equal to 26)
Substituting 13:
3(13) - 10 = 39 - 10 = 29 (not equal to 26)
Substituting 26:
3(26) - 10 = 78 - 10 = 68 (not equal to 26)
Therefore, the number from the set [6,12,13,26] that makes the equation 3x-10=26 true is 12.
using subtitution which number from the set [6,12,13,26] makes this equation 3x-10 equals 26 true
1 answer