Question

(solve the following equation ) b. ​

Answer 1

Answer:

$0.18(5x - 4) = 0.5x + 0.8 \\ 0.18 \times 5x - 0.18 \times 4 = 0.5x + 0.8 \\ 0.90x - 0.72 = 0.5x + 0.8 \\ by \: transposition \\ 0.9x - 0.5x = 0.80 + 0.72 \\ 0.4x = 1.52 \\ x = \frac{1.52}{0.40} \\ = \frac{152}{40} = \frac{38}{10} = 3.8 \\ \\ x = 3.8$

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