Explicație pas cu pas:
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[tex]b) \frac{4}{5} + 2x = 1 \frac{1}{2} \\ \frac{4}{5} + 2x = \frac{1 \times 2 + 1}{2} \\ \frac{4}{5} + 2x = \frac{3}{2} \\ 2x = ^{5)} \frac{3}{2} - ^{2)} \frac{4}{5} \\ 2x = \frac{15}{10} - \frac{8}{10} \\ 2x = \frac{15 - 8}{10} \\ 2x = \frac{7}{10} \\ x = \frac{7}{10} \div 2 \\ x = \frac{7}{10} \times \frac{1}{2} \\ \red{ x = \frac{7}{20} }[/tex]
Succes!!;)
