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Mathematics

Solve the following inequation, write down the solution set and represent it on the real number line:

-2 + 10x ≤ 13x + 10 < 24 + 10x, x ∈ Z.

Linear Inequations

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Answer

Given,

2+10x13x+10<24+10x Solving left side 2+10x13x+1010x13x10+23x123x12x4 Solving right side 13x+10<24+10x13x10x<24103x<14x<143−2 + 10x \le 13x + 10 \lt 24 + 10x \\[1em] \text{ Solving left side } \\[0.5em] -2 + 10x \le 13x + 10 \\[0.5em] \Rightarrow 10x -13x \le 10 +2\\[0.5em] \Rightarrow -3x \le 12 \\[0.5em] \Rightarrow 3x \ge -12 \\[0.5em] \Rightarrow x \ge -4 \\[1em] \text { Solving right side } \\[0.5em] 13x + 10 \lt 24 + 10x \\[0.5em] \Rightarrow 13x -10x \lt 24 -10 \\[0.5em] \Rightarrow 3x \lt 14 \\[0.5em] \Rightarrow x \lt \dfrac{14}{3}

∴ Solution Set = {x : x ∈ Z , -4 ≤ x < 143\dfrac{14}{3}} = {-4, -3, -2, -1, 0, 1, 2, 3, 4}

The graph of the solution set is represented by thick black dots.

Solve the following inequation, write down the solution set and represent it on the real number line: -2 + 10x ≤ 13x + 10 < 24 + 10x, x ∈ Z. Linear Inequations, ML Aggarwal Understanding Mathematics Solutions ICSE Class 10.

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