Question

Subpunctele a, b si c fara d va rog frumos ajutati-ma.

Answer 1

$a) \frac{2x-3}{4} + \frac{3x+4}{2} \leq \frac{2x-4}{3}$
$\frac{2x-3+6x+8}{4} \leq \frac{2x-4}{3}$
$\frac{8x+5}{4} \leq \frac{2x-4}{3}$
$3(8x+5)\leq4(2x-4)$
$24x+15 \leq 8x-16$
$15x\leq-31$
$x<span>\leq</span>-31/15$

$b) \frac{3x-1}{2}+x \geq \frac{2x+1}{3}-2x$
$\frac{5x-1}{2} \geq \frac{-4x+1}{3}$
$15x-3 \geq -8x+2$
$23x \geq 5$
$x \geq 5/23$

$c) \frac{1-x}{3} - \frac{2-x}{2} \leq \frac{x+1}{6}$
$\frac{2-2x-6+3x}{6} \leq \frac{x+1}{6}$
$x-4 \leq x+1$
$-4 \leq 1$
X∈R