Question 133736
2x + 5 < = x + 4
Adding -x to both sides,
==> 2x + 5 - x < = x + 4 - x
==> x + 5 < = 4
Adding -5 to both sides,
==> x + 5 - 5 < = 4 - 5
==> x < = -1
Thus solution set is {x | x < or = - 1}

(ii) 5x > = -4
Multiplying both sides by 1/5
==> (1/5) 5x > = - 4(1/5)
==> 5x/5 > = -4/5
==> x > = -4/5
Thus solution set is {x | x > or = - 4/5}


(iii)A number is at least 14
Let x be the number
Then x > = 14

good luck!!!