Priscilla has a number riddle for her friends. She wants them to guess what number she is thinking of. She tells them that her number can be represented by the x in the equation 3x−10=26 . Her friends guess {6, 12, 13, 36} . Using substitution, which guess was the correct number?(1 point)

Question

Priscilla has a number riddle for her friends. She wants them to guess what number she is thinking of. She tells them that her number can be represented by the x in the equation 3x−10=26 . Her friends guess {6, 12, 13, 36} . Using substitution, which guess was the correct number?(1 point)

Responses

6

12

13

36

Answer 1

To find the correct number, we can simply substitute each guess into the equation and see which one satisfies it.

For guess 6:
3(6) - 10 = 18 - 10 = 8 (not equal to 26)

For guess 12:
3(12) - 10 = 36 - 10 = 26 (equal to 26)

For guess 13:
3(13) - 10 = 39 - 10 = 29 (not equal to 26)

For guess 36:
3(36) - 10 = 108 - 10 = 98 (not equal to 26)

Therefore, the correct number is 12.