Answer:
6x = -29 (Bear in mind I can't see all of the options you can pick from, so this is the closest I can get.)
Explanation:
First, write out the equation.
6(8 + x) = 19. x is our unknown, or our variable.
Now, simplify the equation.
6(8 + x) = 19
48+ 6x = 19
Next, isolate the variable (get the variable alone)
48 + 6x = 19
-48 -48
6x = -29.
Finally, solve (Your solution should lay along the lines of the equation directly above this, but if it wants the solution here it is.)
6x = -29
/6 /6
x = -4.8333