bantuin dong
pertanyaan yang ada di foto
pertanyaan yang ada di foto
Penjelasan dengan langkah-langkah:
[tex] |3a + \frac{5}{2} | + 4a = \frac{6}{7} \\ \\ 1. \: 3a + \frac{5}{2} + 4a = \frac{6}{7} \\ 7a = \frac{6}{7} - \frac{5}{2} \\ 7a = \frac{12 - 35}{14} \\ 7a = - \frac{23}{14} \\ a = - \frac{23}{14} \div 7 \\ a = - \frac{23}{14} \times \frac{1}{7} \\ a = - \frac{23}{98} \\ \\ 2. - (3a + \frac{5}{2}) + 4a = \frac{6}{7} \\ - 3a - \frac{5}{2} + 4a = \frac{6}{7} \\ a = \frac{6}{7} + \frac{5}{2} \\ a = \frac{12 + 35}{14} \\ a = \frac{47}{14} \\ \\ hp \: (a = - \frac{23}{98} \: atau \: a = \frac{47}{14} ) [/tex]
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