[tex]-2.1 ( m - \frac{3}{4} ) = -7 \\ = > m - \frac{3}{4} = \frac{ - 7}{ - 2.1} \\ = > m - \frac{3}{4} = \frac{1}{0.3} \\ = > m = \frac{1}{0.3} + \frac{3}{4} \\ = > m = \frac{4 + 0.9}{1.2} \\ = > m = \frac{4.9}{1.2} \\ = > m = \frac{49}{12} \\ = > m = 4 \frac{1}{12} [/tex]
Answer:
[tex]4 \frac{1}{12} [/tex]
Hope you could understand.
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