Solve the following inequality and show the solution on the number line - Junior Cycle Mathematics - Question a - 2013
Question a
Solve the following inequality and show the solution on the number line.
$$ -2 rac{1}{2} < \frac{1}{2} x - 3 < 1, \ x \in \mathbb{N} $$
Worked Solution & Example Answer:Solve the following inequality and show the solution on the number line - Junior Cycle Mathematics - Question a - 2013
Step 1
Solve the inequality
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Answer
We start with the inequality:
−221<21x−3<1
Rewrite the first part of the inequality:
−2.5<21x−3
Adding 3 to all sides:
0.5<21x
Multiplying by 2:
1<x
Now for the second part of the inequality:
21x−3<1
Adding 3 to both sides:
21x<4
Multiplying by 2:
x<8
Combining the two results gives:
1<x<8
Thus, the integer solutions for x∈N are:
x=2,3,4,5,6,7
On the number line, you highlight the integers between 1 and 8 (not including 1 and 8).
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