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  1. anonymous
    • one year ago
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    @Nnesha i think its 8

  2. Nnesha
    • one year ago
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    substitute x value to check ur answer if both sides are equal then 8 is right

  3. anonymous
    • one year ago
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    oh alright

  4. anonymous
    • one year ago
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    2 x 8 - 4 like that?

  5. Nnesha
    • one year ago
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    |dw:1434465604776:dw| just like this

  6. Nnesha
    • one year ago
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    yep right first multiply and then subtract

  7. anonymous
    • one year ago
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    its not right, cause 2(8) -4 = 12 and 2(8) = 16

  8. Nnesha
    • one year ago
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    yes right both sides are not equal btw you should reduce the fraction but in this case nope 8 is not correct

  9. Nnesha
    • one year ago
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    same like previous one cross multiply :-)

  10. anonymous
    • one year ago
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    |dw:1434465831423:dw| thats what i did to get 8

  11. Nnesha
    • one year ago
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    alright thanks for showing work i appreciate now easy to start :-) |dw:1434465966222:dw| supposed to be \[\huge\rm 2x(10) =20(2x-4)\]

  12. Nnesha
    • one year ago
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    |dw:1434466031483:dw|

  13. anonymous
    • one year ago
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    Ohhh alright so 20x = (2x - 4)

  14. Nnesha
    • one year ago
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    \(\color{blue}{\text{Originally Posted by}}\) @Acceptfully Ohhh alright so 20x = (2x - 4) \(\color{blue}{\text{End of Quote}}\) |dw:1434466187130:dw| 20(2x-4) remember cross multiply now distribute parentheses by 20

  15. anonymous
    • one year ago
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    is the blue 2x x 10

  16. Nnesha
    • one year ago
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    yes right 2x times 10 :-)

  17. anonymous
    • one year ago
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    2x(10) =20x right

  18. Nnesha
    • one year ago
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    yes right

  19. anonymous
    • one year ago
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    20 (2x - 4) _4 -4 16 0 right?

  20. anonymous
    • one year ago
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    or did i do it completely wrong

  21. Nnesha
    • one year ago
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    nope nope 20(2x-4) is same as 20 Times (2x-4) so multiply everything which is inside the parentheses by outside term

  22. Nnesha
    • one year ago
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    \[\huge\rm \color{reD}{20}(2x-4) = \color{reD}{20} \times 2x - \color{red}{20 }\times 4\]

  23. anonymous
    • one year ago
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    20 x 2x = 40x and 20 x 4 = 20 so 40x - 20 would equal 20x right

  24. Nnesha
    • one year ago
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    40x is right but 20 times -4 =what ?

  25. anonymous
    • one year ago
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    -80

  26. Nnesha
    • one year ago
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    yes so \[\huge\rm 20x=40x-80\] now solve for x :-)

  27. anonymous
    • one year ago
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    |dw:1434466742176:dw| like that?

  28. Nnesha
    • one year ago
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    nope you can't combine 20X and -80 there are not LIKE terms so move 40x to the left side so you can combine 2x and 40x

  29. anonymous
    • one year ago
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    |dw:1434466920771:dw|

  30. Nnesha
    • one year ago
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    yep right \[-20x=-80\] LAST STEp solve for x!

  31. anonymous
    • one year ago
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    i forgot, do i divided -20x by 2, i forgot

  32. Nnesha
    • one year ago
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    goal is to isolate x so u need to cancel out -20 from left side :-)

  33. anonymous
    • one year ago
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    |dw:1434467130802:dw| like tht or something

  34. Nnesha
    • one year ago
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    nope it's -20 TIMES X so do opposite of multiplication to cancel out -20 from left side

  35. anonymous
    • one year ago
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    |dw:1434467252579:dw| im sorry, is this how? im confused

  36. Nnesha
    • one year ago
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    \[\frac{ -20x }{ ?}= \frac{ -80 }{ ?}\] remember opposite of multiplication is division so you should divide sides by ... ?/

  37. Nnesha
    • one year ago
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    goal is to isolate x!!! :-)

  38. anonymous
    • one year ago
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    but how do i isolate x

  39. Nnesha
    • one year ago
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    divide both sides by -20

  40. Nnesha
    • one year ago
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    you need x itself so cancel out -20 from left side to do that we should divide both sides by -20

  41. anonymous
    • one year ago
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    sorry, i probably made this harder then it should have been LOL, ok thank you, hold on

  42. anonymous
    • one year ago
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    |dw:1434467463164:dw|

  43. Nnesha
    • one year ago
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    not just 1 carry down x |dw:1434467556289:dw| and 1x is same as x so x=4

  44. Nnesha
    • one year ago
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    you can check your answer by plugging back into the equation both sides equal 1000% sure it's correct :-)

  45. anonymous
    • one year ago
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    Ok thank you very much for all of your time, :)

  46. Nnesha
    • one year ago
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    np :-)

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