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Solution set

CONCEPTS

Method to Solve Absolute Values

1) Isolate the absolute value on 1 side of the equation.

2) If there is a variable inside the absolute value

• Create 2 algebraic equations by setting any expression that has a variable in the absolute value expression equal to + or – that expression.

• Use AND to show there are 2 sets of solutions.


Tips

• If there is an inequality and you divide by a negative, then change the inequality sign

(ex: -5x > 10 => x < 2)

ACT PRACTICE PROBLEMS

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