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anonymous

  • one year ago

a=[bx - c]= d

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  1. anonymous
    • one year ago
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    some details please

  2. anonymous
    • one year ago
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    solve each question for x

  3. anonymous
    • one year ago
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    i already did it but i'm not sure if it's correct

  4. freckles
    • one year ago
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    do the brackets mean anything and you do know you have two equal signs right?

  5. anonymous
    • one year ago
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    is this some kind of algebra or something more exotic,and as freckles said do the brackets have some special you know meaning

  6. anonymous
    • one year ago
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    i think i wrote it wrong it's supposed to be a [bx -c] = d

  7. freckles
    • one year ago
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    welll okay I would divide both sides by a first isolating the thing in brackets

  8. freckles
    • one year ago
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    and put a little note on the side I suppose saying assuming a is not 0

  9. freckles
    • one year ago
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    bx-c=d/a then just undo the subtract by c by adding c on both sides

  10. freckles
    • one year ago
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    and then divide both sides by b making an assumption that b isn't 0

  11. anonymous
    • one year ago
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    i did this a [bx - c] =d divide both sides by a then [bx -c] =da bx-c =da then i add c on both sides bx=da+c over b x=da + c over b

  12. freckles
    • one year ago
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    if you divided both sides by a then why does it show you divided a on one side and multiplied a on the opposing side?

  13. freckles
    • one year ago
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    \[a(bx-c)=d \\ \\ \text{ divide } a \text{ on both sides assuming } a \neq 0 \\bx-c=\frac{d}{a} \\ \text{ adding } c \text{ on both sides } bx=c+\frac{d}{a} \\ \text{ now dividing } b \text{ on both sides assuming } b \neq 0 \\ x=\frac{1}{b}(c+\frac{d}{a})\]

  14. anonymous
    • one year ago
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    if i divide it, i have to put it as a fraction then?

  15. freckles
    • one year ago
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    things you divide by are things that go in the bottom like pretend we have m=3 and we wanted to divide both sides by 2 you can write that as: \[\frac{1}{2}m=\frac{1}{2}(3) \\ \text{ or } \frac{m}{2}=\frac{3}{2}\]

  16. anonymous
    • one year ago
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    yes i know but i wasnt sure about letters

  17. freckles
    • one year ago
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    the letters represent numbers

  18. anonymous
    • one year ago
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    words

  19. freckles
    • one year ago
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    they are to be treated just like numbers

  20. anonymous
    • one year ago
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    ok thanks

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