Thread: Inequalities?

Solve the following inequalities and express your solution in both set notation and interval notation:
(a) | 2x - 1 | < 5

(b) | 2x - 1 | > 5


Need workings. Answer should be in set & interval notation

Originally Posted by federer

Solve the following inequalities and express your solution in both set notation and interval notation:
(a) | 2x - 1 | < 5

(b) | 2x - 1 | > 5


Need workings. Answer should be in set & interval notation

for .
for .

(a) Solve 2x - 1 < 5 => x < 3 AND : .

Solve -(2x - 1) < 5 => x > -2 AND : .

So the answer is combined with . You can "express [this] solution in both set notation and interval notation".

Do (b) in a similar way.