Answer: 1 - 6x = -11
Explanation:
For each expression, substitute x for 2 to determine which is the correct expression:
3x - 12 = 17
3(2) - 12 = 17
6 - 12 = 17
-6
17
Because the number on the left side of the equation doesn't equal the number on the right, this first equation is incorrect.
7(x + 1) = 14
7(2 + 1) = 14
7(3) = 14
21
14
This second equation is incorrect as well.
1 - 6x = -11
1 - 6(2) = -11
1 - 12 = -11
-11 = -11
Because the number on the left equals the number on the right, the third equation is correct.
I hope this helps! :)