Explanation:
The easiest thing to do here is:
4x + 2 = -2 and 4x + 2 = 26
Just know whaever you get for x is greater or less than the actual answer.
4x + 2 = -2
 - 2 - 2
 4x = -4
 

x = -1 <--- Because -2 is supposed to be greater than x, x equals any number less than -1 but not -1.
4x + 2 = 26
 - 2 - 2 
 4x = 24
 

x = 6 <--- Because 26 is supposed to be less than x, x equals any numbey greater than 6 but not 6