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प्रश्न
Solve the following inequality and write the solution set using interval notation
− 9 < 2x + 7 ≤ 19
उत्तर
− 9 < 2x + 7 ≤ 19
∴ − 9 − 7 < (2x + 7) − 7 ≤ 19 − 7
∴ − 16 < 2x ≤ 12
∴ − 8 < x ≤ 6
∴ solution set is (− 8, 6]
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