To solve this, you need to isolate/get the variable "x" by itself in the equation:
-x - 11 + 3x - 23 = -2 First combine like terms (terms that have the same variable and power/exponent)
-x + 3x - 11 - 23 = -2 (I rearranged the terms to be next to their like term, so you combine -x and 3x because they have the same variable "x" and an exponent of 1)
2x - 34 = -2 Now add 34 on both sides
2x - 34 + 34 = -2 + 34
2x = 32 Divide 2 on both sides to get "x" by itself
x = 16 Your answer is A