You can put this solution on YOUR website! Please help me solve for R for this equation:
:
Get rid of the denominators, multiply each term by (R+1)(R+2), results:
:
R(R+2) + 2(R+1)(R+2) = 3R(R+1)
:
R^2 + 2R + 2(R^2 + 3R + 2) = 3R^2 + 3R
:
R^2 + 2R + 2R^2 + 6R + 4 = 3R^2 + 3R
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Group like terms on the left, -4 all alone on the right:
:
R^2 + 2R^2 - 3R^2 + 2R + 6R - 3R = -4
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The R^2's cancel out leaving us with:
5R = -4
R = -4/5
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It easier to check the solution if R=-.8:
Substitute -.8 for R:
:
:
:
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- 4 + 2 = -2; checks our solution
