Question

RESOLVA AS INEQUAÇÕES EM R
X/2+1<127
.
3-3X/2>8-4X/7
.
5p-7>2p+11
.
2x/3-5x-3/4>1

Answer 1

$\frac{x}{2} + 1 < 127 \\ \frac{x}{2} < 127 - 1 \\ \frac{x}{2} < 126$

$x < 2.126 \\ x < 252$

$3 - \frac{3x}{2} > 8 - \frac{4x}{7} \times( 14 ) \\ 42 - 21x > 112 - 8x \\ - 21x + 8x > 112 - 42$

$5p - 7 > 2p + 1 \\ 5p - 2p > 7 + 1 \\ 3p > 8 \\ p > \frac{8}{3}$

$\frac{2x}{3} - 5x - \frac{3}{4} > 1 \times (12) \\ 8x - 60x - 9 > 12 \\ - 52x > 12 + 9 \\ - 52x > 21 \times ( - 1)$

$52x < - 21 \\ x < - \frac{21}{52}$

$- 13x > 70 \times ( - 1) \\ 13x < - 70 \\ x < - \frac{70}{13}$