13-g
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13g E Cu Ecuatii Ajutor class=

Răspuns :


[tex]g) \frac{4x - 3}{7} - \frac{3 - x}{6} = \frac{2x + 1 }{14} + \frac{13}{42} \\ \\ 6(4x - 3) - 7(3 - x) = 3(2x + 1) + 13 \\ \\ 24x - 18 - 21 + 7x = 6x + 3 + 13 \\ \\ 31x - 39 = 6x + 16 \\ \\ 31x = 6x + 16 + 39 \\ \\ 31x = 6x + 55 \\ \\ 31x - 6x = 55 \\ \\ 25x = 55 \\ \\ x = \frac{55}{25} ^{(5} = \frac{11}{5} [/tex]