Ответ:
[tex] \frac{4x - 1}{15} = \frac{9}{5} \\ 5(4x - 1) = 135 \\ 4x - 1 = 27 \\ 4x = 27 + 1 \\ 4x = 28 \\ x = 28 \div 4 \\ x = 7 [/tex]
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Ответ:
[tex] \frac{4x - 1}{15} = \frac{9}{5} \\ 5(4x - 1) = 135 \\ 4x - 1 = 27 \\ 4x = 27 + 1 \\ 4x = 28 \\ x = 28 \div 4 \\ x = 7 [/tex]