Rewrite without absolute values:
Solve for x in the middle:
Add -4 to all three sides:
Divide through by -5, which reverse the inequalities:
Rewrite the inequality using ≤
In interval notation, that is written:
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Rewrite without absolute values:
Solve each part for x. Add -1 to all sides
Divide all sides by 3
In interval notation that's:
Edwin