Question

LINEAR EQUATIONS
1) if the replacement set is the set of natural numbers, solve.
(i) x - 5 < 0
(ii) x + 1 < 7
(iii) 3x - 4> 6

Answer 1

Answer:

(i) x - 5 < 0

» x < 5

» Solution set is {4, 3, 2, 1}.

(ii) x + 1 < 7

» x < 6

» Solution set is {5, 4, 3, 2, 1}

(iii) 3x - 4 > 6

» 3x > 10

» x > 3.3

» x € [4, ∞)