Q. Solve for d.∣d∣−1<17Write a compound inequality like 1<x<3 or like x<1 or x>3. Use integers, proper fractions, or improper fractions in simplest form.
Isolate Absolute Value: We have the inequality: ∣d∣−1<17First, we isolate the absolute value term by adding 1 to both sides of the inequality.∣d∣−1+1<17+1∣d∣<18
Consider Absolute Value Definition: Now we need to consider the definition of absolute value. The inequality ∣d∣<18 means that d is less than 18 units away from 0 on the number line. This gives us two inequalities:d<18 and −d<18
Multiply by −1: The second inequality, −d<18, can be multiplied by −1 to get d>−18. Remember that multiplying or dividing an inequality by a negative number reverses the inequality sign.−d<18(−1)(−d)>(−1)(18)d>−18
Combine Inequalities: Combining the two inequalities from the previous steps, we get the compound inequality:−18<d<18This means that d is greater than −18 and less than 18.
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