With this question you will distribute and add. You want to do this from left to right.
2*x = 2x
2*-4 = -8
Now the equation is (2x-8)+7(x+2). This is where you distribute again.
7*x = 7x
7*2 = 14
The equation is now (2x-8)+(7x+14) which can also be rewritten to be 2x - 8 + 7x + 14. Here you combine like terms through adding.
2x + 7x = 9x
14 - 8 = 6
Remember to always keep the sign of the number when adding. This means your answer would be 9x+6 or 6+9x.
