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anonymous

  • one year ago

Please help me understand!! Solve 4w − 7k = 28 for k. Show your work

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  1. anonymous
    • one year ago
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    @peachpi last one, I promise.. sorry :)

  2. anonymous
    • one year ago
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    what do you have so far?

  3. anonymous
    • one year ago
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    +4w to both sides, to get 32w on the right side? so 7k=32w?

  4. anonymous
    • one year ago
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    4w is positive on the left side, so you need to subtract it. When you subtract, 32 and 4w are not like terms, so they DO NOT COMBINE. -7k = 32 - 4w What comes next?

  5. anonymous
    • one year ago
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    divide by -7? i mean 32 divided by -7

  6. anonymous
    • one year ago
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    wait hold up. it was 28 on the right side, so -7k = 28 - 4w then yes, divide by -7

  7. anonymous
    • one year ago
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    so k=-4-4w?

  8. anonymous
    • one year ago
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    You have to divide the whole side by -7. Both of these are correct |dw:1435455954486:dw|

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spraguer (Moderator)
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