SOLUTION: 5 over z+7= 4 over z-4

Question 458244: 5 over z+7= 4 over z-4
Found 3 solutions by Alan3354, stanbon, MathLover1:
Answer by Alan3354(69443)   (Show Source): You can put this solution on YOUR website!
duplicate

Answer by stanbon(75887)   (Show Source): You can put this solution on YOUR website!
5 over z+7= 4 over z-4
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5/(z+7) = 4/(z-4)
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Cross-multiply and solve for "z":
5(z-4) = 4(z+7)
5z-20 = 4z+28
z = 48
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Cheers,
Stan H.
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Answer by MathLover1(20850)   (Show Source): You can put this solution on YOUR website!

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