If X € { -3,-2,-1,0,1,2,3}, find the solution set of :
2x–1<4
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Given: {x ∈ Z, -3 ≤ x ≤ 3} and 2x - 1 < 4
If x = -3
2x - 1 < 4
2(-3) - 1 < 4
-6 - 1 < 4
-7 < 4
This is true, then the solution set that can satisfy the inequality are {-3, -7},
{-2, -5}, {-1, -3}, {0, -1}, {1, 1}, {2, 3}
If x = 3
2x - 1 < 4
2(3) - 1 < 4
6 - 1 < 4
5 < 4
This is false, then this is not part of the solution set that can satisfy the inequality.
Since x is integers, Z = 3 ≤ x ≤ 3
Solution set = {-3,….,0,…,2} only.
Hope this will be helpful to you.
Given: {x ∈ Z, -3 ≤ x ≤ 3} and 2x - 1 < 4
If x = -3
2x - 1 < 4
2(-3) - 1 < 4
-6 - 1 < 4
-7 < 4
This is true, then the solution set that can satisfy the inequality are {-3, -7},
{-2, -5}, {-1, -3}, {0, -1}, {1, 1}, {2, 3}
If x = 3
2x - 1 < 4
2(3) - 1 < 4
6 - 1 < 4
5 < 4
This is false, then this is not part of the solution set that can satisfy the inequality.
Since x is integers, Z = 3 ≤ x ≤ 3
Solution set = {-3,….,0,…,2} only.
Hope this will be helpful to you.
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