Solve 2|7 – x| < 2 for x.
Solution
Sure, let's solve the inequality step by step.
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We start with the given inequality: 2|7 – x| < 2
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Divide both sides by 2 to isolate the absolute value: |7 – x| < 1
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Now, we can split this into two separate inequalities. The absolute value of a number being less than 1 means the number is between -1 and 1. So, we have -1 < 7 - x < 1
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We can solve these two inequalities separately:
For -1 < 7 - x, subtract 7 from both sides to get -8 < -x, then multiply by -1 to get x < 8 (remember to flip the inequality when multiplying by a negative number)
For 7 - x < 1, subtract 7 from both sides to get -x < -6, then multiply by -1 to get x > 6
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So, the solution to the inequality 2|7 – x| < 2 is 6 < x < 8. This means x is greater than 6 and less than 8.
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