Question

Solve solution set :- 2x+4>=8 ,x € N

Answer 1

Answer:

−2<2x−4⇒2x−4>−2and−2x+5≥13⇒2x>2and−2x≥13−5

⇒x>1and−2x≥8⇒x>1and−x≥4

⇒x>1andx≤−4

∴x>1orx≤−4orx∈(−∞,−4)∪(1,∞)