The sum of twice a number and 18 less the number is the same as the difference between -34 and the number. What is the number?

I wrote it like this;
x+18=-34-x

x+18-18=-34-18-x

x=-52-x

x+x=-52-x+x

2x=-52

2/2x = -52/2

x = -26

I have translated it incorrectly but I am unsure where.

Question

The sum of twice a number and 18 less the number is the same as the difference between -34 and the number. What is the number? 

I wrote it like this;
x+18=-34-x
 
x+18-18=-34-18-x

x=-52-x

x+x=-52-x+x

2x=-52

2/2x = -52/2

x  = -26

I have translated it incorrectly but I am unsure where.

anonymous · Answer

Is it supposed to have been:

2x+x-18= -34-x

3x-18=-34-x
3x+x-18= -34-x+x

4x-18=-34

4x-18+18= -34+18

4x= -16

4/4x= -16/4

x=-4

????????????