Which equation(s) have the solution x = 6 (choose all that apply)?

Answer options:
x + 1 = 7
-x - 1 = -5
6(x + 2) = 2x - 5(x - 8) + 26
3x + 16 = 2x + 10
no explanation is necessary!

Question

Which equation(s) have the solution x = 6 (choose all that apply)? 

Answer options:    
x + 1 = 7 
   -x - 1 = -5 
   6(x + 2) = 2x - 5(x - 8) + 26  
   3x + 16 = 2x + 10 
no explanation is necessary!

anonymous · Answer

x+1=7
x=7-1
x=6
__________________
6(x+2)=2x-5(x-8)+26
9x=66-12
x=54/9=6

anonymous · Answer

so the answers is only x + 1 = 7? :)

anonymous · Answer

so what's the final answer @isaacme  :)

anonymous · Answer

give him time! patience ;)

anonymous · Answer

realy ! Maybe calculation error, i did it faster

anonymous · Answer

ok..! ur help is appreciated though

anonymous · Answer

Wait a moment will I check

anonymous · Answer

thanks! i'll check it myself 2

anonymous · Answer

I think its correct

anonymous · Answer

yes, there are  two answers .

anonymous · Answer

but isn't there supposed to be 1? @isaacme

anonymous · Answer

why? it's different equations, and in question "choose all that apply"

anonymous · Answer

yea don't mind @DaniB

anonymous · Answer

oohhhh,,, sorry didn't see that sorryyy

anonymous · Answer

its ok