Question on: SS2 Mathematics - Algebraic Fractions
Solve \(0.15x + 7 = 0.5x\)
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A
25
B
20
C
15
D
30
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Correct Option: B
\[0.15x + 7 = 0.5x\]
\[\frac{15}{100}x + 7 = \frac{5}{10}x\]
\[15x + 700 = 50x\]
\[15x - 50x = - 700\]
\[- 35x = - 700\]
\(x = \frac{- 700}{- 35} = \ \frac{100}{5} = 20\)
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