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Absolute Value: (Proof track.) Give a complete justification. Solve math; enter the larger solution.

Cases and graphs.

Try the problem

**(Proof track.)** Give a complete justification. Solve ∣x+4∣=2∣x−1∣|x+4|=2|x-1|; enter the larger solution.

Hint and answer

Concept to use

Piecewise contests.

Hint

Break the real line at the expression's zeroes and justify each interval.

Answer

6

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