2 |d+5| - 1 < 3 please show the work

2 answers:

4 0

2 |d+5| - 1 < 3

Start by adding 1 to both sides...

2 | d + 5 | < 4

Divide both sides by 2

| d + 5 | < 2

Now make to sections...

d + 5 < 2 or d + 5 > - 2

Subtract both sides 5

d < - 3 or d > - 7 is the answer

Or you can write is as - 7 < d < - 3

AURORKA [14]4 years ago

4 0

2(|d+5|)−1<3

Lets break this down using the order of operations.
Step 1: Add 1 to both sides.2(|d+5|)−1+1<3+12(|d+5|)<4
Step 2: Divide both sides by 2.2(|d+5|)2<42|d+5|<2
Step 3: Solve Absolute Value.
If you don't know what the absolute value is then...Wow|d+5|<2We knowd+5<2andd+5>−2d+5<2(Condition 1)d+5−5<2−5(Subtract 5 from both sides)d<−3d+5>−2(Condition 2)d+5−5>−2−5(Subtract 5 from both sides)d>−7
Answer:d<−3 and d>−7

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