Решите систему неравенств: {3x+5(x-2)<3-2x {4(5x-1)-21x>1-3x

Question

Решите систему неравенств:
{3x+5(x-2)<3-2x<br> {4(5x-1)-21x>1-3x

Answer 1

{3x+5(x-2)<3-2x</span>⇒3x+5x-10<3-2x⇒8x+2x<3+10⇒10x<13⇒x<1,3<span>
{4(5x-1)-21x>1-3x⇒20x-4-21x>1-3x⇒-x+3x>1+4⇒2x>5⇒x>2,5
\\\\\\\\\\\\                       ////////////////////////
-------(1,3)--------------(2,5)--------------
x∈∅