Say this 
First I simplified both sides of the equation.
5x+2 (6x-2)=98
5x+(2)(6x)+(2)(-2)=98
Then I distributed 
5x+12x+-4=98
(5x+12x) + (-4)=98 
Then I combined like terms 
17x+-4=98 
17x-4=98 
Then I just added four both sides 
17x-4+4=98+4 17x=102 
Then lastly I Divided both sides by 17
17x/17 = 102/17 x=6 
Which is why my final answer is 6