Question

Ajutatima va roggg.l3x-2l pentru x=-2
-lx-2l+lx+3l pentru x=-2
3l1-xl-2l4-3xl pentru x=5

Answer 1

$a).x=-2 \\ |3x-2|=|3 \cdot (-2)-2|=|-6-2|=|-8|=8 \\ b).x=-2 \\ -|x-2|+|x+3|=-|-2-2|+|-2+3|= \\ =-|-4|+|1|=-4+1=-3 \\ c).x=5 \\ 3|1-x|-2|4-3x|=3|1-5|-2|4-3 \cdot 5|=3|-4|-2|4-15|= \\ =3 \cdot 4-2|-11|=12-2 \cdot 11=12-22=-10$