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Question

Solve each of the following system of equations in R.

7. 2x + 5 ≤ 0, x − 3 ≤ 0

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Solution

We have, 2x+502x-5x-52x(-, -52] ... (i)Also, x-30x3x(-, 3] ... (ii)Thus, the solution of the given set of inequalities is the intersection of (i) and (ii).(-,-52] (-,3] = (-,-52]Thus, the solution of the given set of inequalities is (-,-52].

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