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anonymous

  • 5 years ago

I have no idea where to start on this problem..... Any help, please :) -10 - 3/7 x = 5

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  1. dumbcow
    • 5 years ago
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    i am you need to solve for x

  2. anonymous
    • 5 years ago
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    multiply each side of the equation with 7x

  3. anonymous
    • 5 years ago
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    do you need to go back to school for english, dumbcow?

  4. anonymous
    • 5 years ago
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    so how do I start that? do I add 3/7 to the right side?

  5. anonymous
    • 5 years ago
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    nurse, is x in the denominator of the fraction?

  6. anonymous
    • 5 years ago
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    why multiply 7?

  7. dumbcow
    • 5 years ago
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    yes thats why i do math

  8. anonymous
    • 5 years ago
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    get ride of the fractions and multiply by 7 in each side

  9. anonymous
    • 5 years ago
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    You get -10-3=5(7x)

  10. anonymous
    • 5 years ago
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    no X is not the denominator

  11. anonymous
    • 5 years ago
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    The fraction is 3/7

  12. anonymous
    • 5 years ago
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    Frederick, what do I do next?

  13. dumbcow
    • 5 years ago
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    -10 -(3/7)*x = 10 Add 10 to both sides _>-(3/7)*x = 20 multiply by reciprocal of -3/7 on both sides ->x = 20*(-7/3) -> x = -140/3

  14. anonymous
    • 5 years ago
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    you would not get -10-3=5(7x), you would get -10(7x)-3=5(7x), which does not help. Isolate x, => -(3/7)x=5-10 => x = (5-10)/(-3/7)

  15. anonymous
    • 5 years ago
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    nurse just google it since dumbcow doesn't know what he's doing

  16. anonymous
    • 5 years ago
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    sorry i made a mistake. the equation is -10-(3/7)x = 5, add 10 to both sides, then divide by -(3/7)

  17. dumbcow
    • 5 years ago
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    haha oops yeah i wrote the problem down wrong x=-105/3

  18. anonymous
    • 5 years ago
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    x=35

  19. gw2011
    • 5 years ago
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    Add +10 to both sides of the equation because you want to keep the unknowns (x in this case) on one side of the equation and the knowns on the otherside of the equation. This will give you the following: -3/7x=5+10=15 Now multiply both side of the equation by -7 (since there is a minus sign and you want to put the knowns on the same side of the equation) and divde by (for the same reason of putting the knowns on the same side of the equatioin). This gives you the following: x=[(15) (-7)]/3 x=-35

  20. gw2011
    • 5 years ago
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    I inadvertently left out the number 3 when I said to "and divide by (for the same reason...)." Obviously, the number 3 should have been placed after "divide by." However, you can see this in the equation where the number 3 is dividing the equation.

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