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sarah_98

  • 3 years ago

help in algebra??!?!

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  1. sarah_98
    • 3 years ago
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    7-(X+1)=9-(2X-1)

  2. .Sam.
    • 3 years ago
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    6-X=10-2X Add (2 X-6) to both sides: X=4

  3. sarah_98
    • 3 years ago
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    i didnt understand :S

  4. adunb8
    • 3 years ago
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    well bascially combine the like terms leave the x for now and add all the numbers together

  5. adunb8
    • 3 years ago
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    on our right side we get 6-x and left side we get 10-2x

  6. sarah_98
    • 3 years ago
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    but how 6-x? isnt it 6X-6?

  7. sarah_98
    • 3 years ago
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    i mean 6x+6

  8. adunb8
    • 3 years ago
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    lets start with right side move the negative (-) sign into the (pathenses)

  9. adunb8
    • 3 years ago
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    what do you get?

  10. sarah_98
    • 3 years ago
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    7x-10?

  11. adunb8
    • 3 years ago
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    |dw:1347529396345:dw|

  12. adunb8
    • 3 years ago
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    do you get it? we move the negative sign in the outside and factored it into (2x-1) there fore 9-2x+1 and 9+1 = 10 so -2x+10

  13. adunb8
    • 3 years ago
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    do the same thing for the left side also

  14. sarah_98
    • 3 years ago
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    ok

  15. adunb8
    • 3 years ago
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    @sarah_98 are you getting it?

  16. febylailani
    • 3 years ago
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    7-(X+1)=9-(2X-1) 7-x-1=9-2x+1 7-1-x=9+1-2x 6-x=10-2x 2x-x=10-6 x=4 do u understand?

  17. sradha
    • 3 years ago
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    7-(x+1)=9-(2x-1) 7-x-1=9-2x+1 6-x=10-2x so, x=4

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