Question

 Solve for x in the following in equation, if the replacement set is N<10: 

3x - 5 < 7 

Answer 1

 3x - 5 < 7

3x-5 < 7

⇒ 3X <7 + 5

⇒ 3X < 12

⇒ x < 4 

But {x : x E N; N < 1 O}

Therefore, solution set x = { 1,2,3,4}