First, let's combine like terms by adding 3x to both sides of the equation:

7x + 3x + 4 = 6

Now, combine the x terms:

10x + 4 = 6

Next, subtract 4 from both sides:

10x = 2

Finally, divide both sides by 10 to solve for x:

x = 2/10 = 1/5

Therefore, the solution to the equation is x = 1/5.