Question

ex : 3 primul rand si exercițiu 4 ultimul rand

Answer 1

3. a)x+3<2|-3 ⇒x<-1
b)x-5<-3|+5⇒x<2
c)2x>-6|÷2⇒x>-3
d)x-3>0|+3⇒x>3
4.d)2x+1≤5|-1⇒2x≤4|÷2⇒x≤2
e)2x-3≥-3|+3⇒2x≥0|÷2⇒x≥0
f)3x-1≤2|+1⇒3x≤3|÷3⇒x≤1