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anonymous

  • 5 years ago

can some 1 help me figure out this equation 2c-9=3c+9

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  1. amistre64
    • 5 years ago
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    what do we have to do ?

  2. anonymous
    • 5 years ago
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    what letter are we working out?

  3. amistre64
    • 5 years ago
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    realize that the = sign means that whatever you do to one side has to be done to the other to keep them equal...

  4. amistre64
    • 5 years ago
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    2c-9=3c+9 ; lets -2c from both sides 2c-2c-9=3c-2c+9 -9 = c+9 ; now subtract 9 from both sides like this -9-9 = c+9-9 -18 = c+0 -18 = c

  5. anonymous
    • 5 years ago
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    thanks sooo much

  6. amistre64
    • 5 years ago
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    youre welcome :)

  7. anonymous
    • 5 years ago
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    x/3+2/3= -2x/3-2 this is confusing can i get sum help

  8. amistre64
    • 5 years ago
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    multiply everything by 3 to get rid of the fractions.... x+2 = -2x -6

  9. amistre64
    • 5 years ago
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    3x=-8 x = -8/3

  10. anonymous
    • 5 years ago
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    can someone explain how 2x+5=3x+1 has no solution

  11. anonymous
    • 5 years ago
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    am i just finding the like terms

  12. anonymous
    • 5 years ago
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    A boat travels 400 miles at a rate of 20 miles per hour. How many hours did it travel?

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spraguer (Moderator)
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