SOLUTION: Solve each inequality. Graph the solutions. 5|2b+1|-3< 7 - the < is like 7 is greater than or equal to -
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-> SOLUTION: Solve each inequality. Graph the solutions. 5|2b+1|-3< 7 - the < is like 7 is greater than or equal to -
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Algebra: Inequalities, trichotomy
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Question 158239
:
Solve each inequality. Graph the solutions.
5|2b+1|-3< 7
-
the < is like 7 is greater than or equal to
-
Answer by
jim_thompson5910(35256)
(
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):
You can
put this solution on YOUR website!
Start with the given inequality
Add 3 to both sides.
Divide both sides by 5
Break up the absolute value (remember, if you have
, then
and
)
and
Break up the absolute value inequality using the given rule
Combine the two inequalities to get a compound inequality
Subtract 1 from all sides
Divide all sides by 2 to isolate b
----------------------------------------------------
Answer:
So our answer is
So the answer in interval notation is
[
]
and the answer in set-builder notation is
Here's the graph of the solution set
Graph of the solution set
Note:
There is a
closed
circle at
which means that we're including this value in the solution set
Also, there is a
closed
circle at
which means that we're including this value in the solution set.