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Question

If 0.06 (x - 5) = 0.04 (x + 8) then x is equal to _____.


A

31

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B

11

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C

20

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D

15

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Solution

The correct option is A

31


0.06 (x - 5) = 0.04 (x + 8)

0.06x - 0.30 = 0.04x + 0.32

0.06x - 0.04x = 0.32 + 0.30

0.02x = 0.62

x = 0.62/0.02 = 31


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