[tex] \frac{1}{2} x - 5 \geqslant x + \frac{3}{4} \\ \\ 20x - 20 \geqslant 4x + 3 \\ \\ 2x - 20 - 4x \geqslant 3 \\ \\ - 2x \geqslant 3 + 20 \\ \\ - 2x \geqslant 23 \\ \\ x \leqslant - \frac{23}{2} [/tex]
espero te sirva
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[tex] \frac{1}{2} x - 5 \geqslant x + \frac{3}{4} \\ \\ 20x - 20 \geqslant 4x + 3 \\ \\ 2x - 20 - 4x \geqslant 3 \\ \\ - 2x \geqslant 3 + 20 \\ \\ - 2x \geqslant 23 \\ \\ x \leqslant - \frac{23}{2} [/tex]
espero te sirva