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Question
Solve the following equation for the unknown: `x/(2) + x/(4) + x/(8)` = 7
Sum
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Solution
`x/(2) + x/(4) + x/(8)` = 7
⇒ `(4x + 2x + x)/(8)` = 7
⇒ `(7x)/(8)` = 7
⇒ 7x = (7)(8)
⇒ x = `(7 xx 8)/(7)`
⇒ x = 8.
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