michaelhale 2 years ago the answer to this is supposed to be 2 but I cant get there -2(x-4)-(8x-3)=2-(6x-1)can anyone help me with this

• This Question is Open
1. tkhunny

-2(x-4)-(8x-3)=2-(6x-1) What did you do first?

2. michaelhale

distribute the -2(x-4)

3. Jamierox4ev3r

I will do my best -2(x-4)-(8x-3)=2-(-6x-1). I think this is the problem if i understood correctly right? @michaelhale

4. michaelhale

yes that is the problem

5. tkhunny

Don't just tell me - SHOW me!

6. michaelhale

-2(x-4),-2x+8

7. Jamierox4ev3r

-2x+8-8x+3=2+6x+1

8. Jamierox4ev3r

combine the like terms then solve like a regular equation

9. michaelhale

how did you get +3

10. Jamierox4ev3r

a negative (-) times -3 = a positive number, hence +3

11. Jamierox4ev3r

that is how i distributed it

12. tkhunny

Don't be afraid to rewrite things a bit. It will help you win the battle. -2(x-4)-(8x-3)=2-(6x-1) First parentheses -2x + 8 - (8x-3) = 2 - (6x-1) Next parentheses -2x + 8 - 8x + 3 = 2 - (6x-1) Last parentheses -2x + 8 - 8x + 3 = 2 - 6x + 1 See how easy that is to follow, now that we have written the entire expression every step of the way? Okay, now what?

13. michaelhale

so when I see -(8x_3) I distribute the - sign as a coefficient of -1

14. tkhunny

That is a reasonable understanding. It is the same on the last parentheses.

15. michaelhale

thank you both I have been beating myself up over this one for a while I got the answer I needed

16. tkhunny

Woo-hoo! Good work!

17. Jamierox4ev3r

nice process @tkhunny awesome job! ^.^

18. michaelhale

i cant give a best response because you both did awsome

19. tkhunny

No worries. You learning is what is important!

20. chandanjha

-2x+4-8x+3=2-6x+1 =>-10x+5=-6x+3 =>-4x=-2 =>x=2