Question

4
List the solution set of 30 - 4(2x - 1) < 30, given that x is a positive integer.
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Answer 1

Answer:

answer is 1,2,3

Step-by-step explanation:

Given inequation, 

30−4(2x−1)<30

⇒30−8x+4<30

⇒34−8x<30

⇒−8x<30−34

⇒−8x<−4 

⇒8x>4[On multiplying both sides by -1, the inequality reverses]

⇒x>4/8

⇒x>1/2

As x is a positive integer

The solution set is {1,2,3,…}

Answer 2

Answer:

solution set={2,3,4,5,6,...}

Step-by-step explanation:

30-4(2x-1)<30

30-8x+4<30

30+4-30<8x

4<8x

4/8<x

1/2<x