need help r-2x = 14 for s?

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r-2 s = 14 for s

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  • Robert
    Lv 6
    7 years ago
    Best Answer

    r - 2s = 14 Solve for s:

    Subtract r off both sides:

    -2s = 14 - r

    Multiply both sides by -1 to avoid trouble later:

    2s = r - 14

    Divide by 2:

    s = (r - 14)/2

  • Bea
    Lv 5
    7 years ago

    r - 2s = 14 First, subtract r from both sides

    r - (r) - 2s = 14 - (r)

    - 2s = 14 - r Now, divide both sides by -2

    -2s / (-2) = (14 - r) / (-2)

    s = (14 - r) / (-2)

    s = (r - 14) / 2 or

    s = r/2 - 7

  • Luis
    Lv 6
    7 years ago

    Dear Greg G,

    r-2s=14

    Since r does not contain the variable to solve for, move it to the right-hand side of the equation by subtracting r from both sides.

    -2s=-r+14

    Divide each term in the equation by -2.

    -(2s)/(-2)=-(r)/(-2)+(14)/(-2)

    Simplify the left-hand side of the equation by canceling the common factors.

    s=-(r)/(-2)+(14)/(-2)

    Simplify the right-hand side of the equation by simplifying each term.

    s=(r)/(2)-7

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    Source(s): Precalculus Solved!
  • 7 years ago

    r - 2s = 14

    ADD 2s BOTH SIDES

    r - 2s +2s = 14 + 2s

    r = 14 + 2s

    SUBTRACT 14 FROM BOTH SIDES

    r - 14 = 14 + 2s -14

    r - 14 = 2s

    DIVIDE BOTH SIDES BY 2

    ( r - 14) / 2 = 2s /2 = s

    ANSWER s = ( r-14) / 2

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  • 7 years ago

    Does not mke sense. Please repost.

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