Solve 0 15x 7 0 5x - SS2 Mathematics Algebraic Fractions Question
Solve \(0.15x + 7 = 0.5x\)
A
25
B
20
C
15
D
30
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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