112k views
4 votes
Solve the following inequalities and give the solutions in both set and interval notations.

1 < 4x + 2 < 10

User Fpes
by
3.0k points

2 Answers

3 votes

Answer:

1<4x+2<10

= -1/4<x<2

x=(-1/4,2)

Solve the following inequalities and give the solutions in both set and interval notations-example-1
User Leb
by
2.8k points
5 votes


1 < 4x + 2 < 10

First let's subtract 2 from everything in the inequality:


1 - 2 < 4x + 2 - 2 < 10 - 2


-1 < 4x < 8

Next, let's divide 4 from everything in the inequality:


(-1)/(4) < (4x)/(4) < (8)/(4)


(-1)/(4) < x < 2

This is the final solution to the inequality:
((-1)/(4), 2)

User Velazquez
by
2.8k points