Question

решите систему неравенств $left { {{1.5x+4 textgreater 3x+7} atop {3x+23 textgreater =8}} right.$

Answer 1

{1,5x+4>3x+7⇒3x-1,5<4-7⇒1,5x<-3⇒x<-2
{3x+23≥8⇒3x≥8-23⇒3x≥-15⇒x≥-5
x∈[-5;-2)