1.

Solve the following inequalities and write the solution set using interval notation.-9 < 2x + 7 ≤ 19

Answer»

-9 < 2x + 7 ≤ 19

∴ -16 < 2x ≤ 12

∴ -8< x ≤ 6

∴ x ∈ (-8, 6]



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