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anonymous

  • one year ago

solve for x -2(x + 3) = -2(x + 1) - 4

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  1. anonymous
    • one year ago
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    Expand the expression on both sides.

  2. anonymous
    • one year ago
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    Then, combine all the x's on one side, the constants on another side. You will be able to solve for x then.

  3. MrNood
    • one year ago
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    @kaylalynn44 this is showing as posted 1 month ago - are you there online?

  4. anonymous
    • one year ago
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    yes idk y it says that. it must be a glitch

  5. MrNood
    • one year ago
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    ok - on the left of the equagtion there is a term -2(x+3) Can you expand that? on the right side there is a term -2(x+1) can you expand that?

  6. anonymous
    • one year ago
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    Do you mean use the distributive property?

  7. MrNood
    • one year ago
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    yes

  8. anonymous
    • one year ago
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    x -2x + 2 * 3 = -2x +1x - 4

  9. MrNood
    • one year ago
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    a good try - but not quite correct when you distribute you have to remember to distribute the sign (i.e. the -) too

  10. anonymous
    • one year ago
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    x -2x * 3 +2 = -2x * -2 + 1 -4 ??

  11. MrNood
    • one year ago
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    whoa! take it steady -2(x+3) is the same as -2(x) + -2(3) try both sides again

  12. anonymous
    • one year ago
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    x -2x + -2 * 3 = -2x + -2 * 1 -4

  13. MrNood
    • one year ago
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    ok good that is correct - but it needs some brackets to make it clearer.... x -2x + -2 * 3 = -2x + -2 * 1 -4 x -2x + (-2 * 3) = -2x + (-2 * 1) -4 so write that out with the numbers completed

  14. anonymous
    • one year ago
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    x -2x + (-2 * 3) = (-2 * 1) -4 x -2x + -6 = -2 -4

  15. MrNood
    • one year ago
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    you missed out the -2x from the right side so we have x-2x-6 =-2x-6 ok? now add 2x to each side

  16. anonymous
    • one year ago
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    x - 6 = -6?

  17. anonymous
    • one year ago
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    then add 6 to both sides?

  18. anonymous
    • one year ago
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    x = 0?

  19. MrNood
    • one year ago
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    good now add 6 to each side...

  20. anonymous
    • one year ago
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    x = 0

  21. MrNood
    • one year ago
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    yes check that back in the original equation

  22. MrNood
    • one year ago
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    the original (when x=0) becomes -6=-6 so x=0 is true solution

  23. anonymous
    • one year ago
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    0 -2 (0 + 3) = -2 (0 +1) -4 -2 * 3 = -2 +1 * -4 -6 = 2 * -4 -6 = -6

  24. anonymous
    • one year ago
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    Thank you so so so much. I think i understand it better. Thank you for your time!

  25. MrNood
    • one year ago
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    yw

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