To solve the inequality 4|1 - 2x| + 5 ≤ 25,
we can start by isolating the absolute value term.
Subtract 5 from both sides:
4|1 - 2x| ≤ 20
Divide both sides by 4:
|1 - 2x| ≤ 5
For an inequality of the form |A| ≤ B,
where A is an expression and B is a positive number, it can be rewritten as a
compound inequality: -B ≤ A ≤ B.
In this case, |1 - 2x| ≤ 5 can be written
as: -5 ≤ 1 - 2x ≤ 5.
We can break the compound inequality into
two separate inequalitie and solve each inequality separately, and then find the
intersection of the two solutions.
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