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mumina1999 Group Title

Help me solve this 2(x + 2) − (x + 1) = 8

  • one year ago
  • one year ago

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  1. mumina1999 Group Title
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    i am confused a bit with this equation and i would like someone to explain to me how to solve this

    • one year ago
  2. Nameless Group Title
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    first you need to distribute the 2

    • one year ago
  3. Nameless Group Title
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    then distribute a -1 for the - sign in front of the other. then, combine like terms, isolate your variable and solve.

    • one year ago
  4. Nameless Group Title
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    so 2(x+2) = 2(x) + 2(2) for the first part

    • one year ago
  5. Nameless Group Title
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    the second you are going to do -1(x) and -1(1)

    • one year ago
  6. Nameless Group Title
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    so for the first part you should have 2x+4 right?

    • one year ago
  7. Nameless Group Title
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    so for the 2nd part ou should have -x - 1. put that all together and you have 2x+2-x-1=8

    • one year ago
  8. Nameless Group Title
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    now simplify by combining like terms .. thus x+1 = 8. then you need to move that 1 over to the other side by subtracting it from each side. so x+1-1=8-1 .. now you have x = 8-1

    • one year ago
  9. mumina1999 Group Title
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    but wjere did u get the -1 from

    • one year ago
  10. Nameless Group Title
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    im sorry.. it should be + 1

    • one year ago
  11. mumina1999 Group Title
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    o nevermind i got it because of the - sign infront before the x + 1 rifght?

    • one year ago
  12. mumina1999 Group Title
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    o wat?

    • one year ago
  13. Nameless Group Title
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    yes it should be x = 8+1 since you have to add 1 to both sides.. my mistake

    • one year ago
  14. math456 Group Title
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    so here you are looking for x!

    • one year ago
  15. math456 Group Title
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    first multiply out the 2 with the stuff thats inside the brackets.

    • one year ago
  16. Nameless Group Title
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    and yes.. because of the minus sign. u distribute that as well

    • one year ago
  17. math456 Group Title
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    2x+4-x-1=8

    • one year ago
  18. Nameless Group Title
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    good luck

    • one year ago
  19. math456 Group Title
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    now you subtract! 2x-x+4-1=8

    • one year ago
  20. math456 Group Title
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    here its x+3=8 not subtracy the 3 on both sides. you will get x=8-3 so the x=5

    • one year ago
  21. mumina1999 Group Title
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    thank you both!!!!

    • one year ago
  22. math456 Group Title
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    u r weclome :)

    • one year ago
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