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erniellyd28

  • 3 years ago

11z-3-7z=9

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  1. Rosh007
    • 3 years ago
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    mmm what is (11-7)z =

  2. erniellyd28
    • 3 years ago
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    4

  3. Rosh007
    • 3 years ago
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    yes... 11z-3-7z=9 means (11-7)z-3 = 9 which gives 4z-3 = 9; Now do you want to solve for z?

  4. erniellyd28
    • 3 years ago
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    thats where i get stuck

  5. erniellyd28
    • 3 years ago
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    3 to get 9?

  6. erniellyd28
    • 3 years ago
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    sorry my message didnt sent completely

  7. erniellyd28
    • 3 years ago
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    do i find a number to multiply

  8. erniellyd28
    • 3 years ago
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    do i find a number to multiply 4 with and then subtract it from 3 to get 9?

  9. Rosh007
    • 3 years ago
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    well let us get moving fromwher you got stuck..... equality has a property that if you add or subtract or multiply or divide by same number on both side of equality the result won't be altered.... so.... that is a+b =x is same as a+b+c= x+c a+b-c= x-c (a+b)*c= x*c (a+b)/c = x/c

  10. Rosh007
    • 3 years ago
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    yes you can find a number which satisfies your rlation by using above property of equality

  11. Rosh007
    • 3 years ago
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    any idea how?

  12. erniellyd28
    • 3 years ago
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    4 times 3 =12-3=9?

  13. Rosh007
    • 3 years ago
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    How you got 4 times 3??

  14. erniellyd28
    • 3 years ago
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    4z= 4(3)=12 or am i wrong

  15. Rosh007
    • 3 years ago
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    yes... the method you followed is a round about way...but there is an alternate simple 100% guarntry way using the above property wanna learn it?

  16. erniellyd28
    • 3 years ago
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    yes please

  17. Rosh007
    • 3 years ago
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    :) so aftr simplification of 11z-3-7z=9 we got 4z-3 = 9 now add 3 to both sides of equality ( the result will not change because of the property a+b =x is same as a+b+c= x+c) what you get

  18. erniellyd28
    • 3 years ago
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    12

  19. Rosh007
    • 3 years ago
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    please type full equation

  20. Rosh007
    • 3 years ago
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    means both RHS and LHS

  21. erniellyd28
    • 3 years ago
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    rhs? lhs?

  22. Rosh007
    • 3 years ago
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    means RHS = Right Hand Side LHS = Left Hand Side of equation

  23. erniellyd28
    • 3 years ago
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    im so lost im very sorry

  24. Rosh007
    • 3 years ago
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    in this equation a+b =x a+b is LHS x is RHS

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