Question

x + 6 = 8 + 7x PLEASE SOLVE and EXPLAIN. Will leave thanks.

Answer 1

x + 6 = 8 + 7x; x = -1/3
First, subtract x from both sides. This leaves you with 6 = 8 + 6x. 
Then subtract 8 from both sides. This gives you -2 = 6x. 
Next, divide both sides by 6, this leaves you with -2/6 (or -1/3) for x.

Answer 2

x + 6 = 8 + 7x
First, use the equality property to move the variable x to one side.
x + 6 = 8 + 7x
-x                 -x
You are left with: 6 = 8 + 6x
Use the equality property again
 6 = 8 + 6x
-8   -8

-2 = 6x
Divide each side by 6: and your solution is -2/6, which simplifies to -1/3
In this example, Lisa is correct