You can put this solution on YOUR website! 1/(z+9) + 9/5z
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lcd = 5z(z+9)
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Rewrite each fraction with the lcd as its denominator:
[5z/lcd] + 9(z+9)/lcd
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Combine over the lcd to get:
[5z + 9z+81]/lcd
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Simplify:
= [14z+81]/[5z(z+9)]
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cheers,
Stan H.
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