2(x+2)=1
Then you multiply 2 by x and 2 by 2 so you get..
2x+2=1
Then you subtract 2 from to which you can cross out tand subtract 2 from 1 which equals to -1
2x=-1
Then you divide 2 by 2 which you can cross out and 2 by -1 which equals to -0.5 so..
X=-0.5
-0.5 is your answer