Solving inequalities is almost the same as solving equalities for basic cases. Only thing you've to watch out for is signs.
For example, in 2x + 3 > 5,
We may subtract 3 from both sides,
2x > 2
Hence, by dividing both sides by 2, we get x>1.
The inequality sign changes on multiplying with (-)
For example, 2 < 6
But, -2 > -6
And when you interchange a fraction
E.g. 3/4 > 2/3
But, 4/3 < 3/2
You can now solve these of your own
Try yourself
Answer:
Total number of population = 2043
Step-by-step explanation:
According to the question
Total number of parents = 1390
number of parents checked their teens social media = 653
⇒ Total number of population = 653 +1390
Total number of population = 2043
We want to solve the two equations

and

First equation.
Take natural log of each side.

Note that ln(e) = 1 by definition.
Answer: x = 1.79 (nearest hundredth)
Second equation.
Take natural log of each side.

Answer: y = -2.21 (nearest hundredth)
-5,-3,1,7 ....................................