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math help

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solve for x

1. -5y+7=-18



2.-12=3a-5a





3. 2.5p=0.5p+14







4. 3x-7-+(-5x+8)

  • math help -

    2.5p=.5p+4

    divide both sides by .5 p.

    You will be left with 5p=4

    Divide 4 by 5

    so the answer is p=4/5

  • math help -

    No what you should do is all adding/subtracting first then dividing/ multiplying.

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