34 + 6x = 2 + 4 (4x - 7)

x = 6

distribute the bracket on the right side of the equation and simplify

34 + 6x = 2 + 16x - 28

34 + 6x = 16x - 26 (subtract 16x from both sides)

34 - 10x = - 26 (subtract 34 from both sides)

- 10x = - 60 (divide both sides by - 10)

x = 6

So basically it's a lot of collecting like terms, but x=6