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What is the solution set of -9x ≥ 27?
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-9x ≥ 27 can u isolate x ??
i mean, keep x on one side and rest all on other.. can u do that ??
x ≥ 27 / (-9) So x ≥ -3.... is the solution...
not getting ??
\[-9x \ge 27.\]\[\implies -x \ge \frac{27}{9}.\]\[\implies -x \ge 3.\]\[\implies x \le -3.\]Therefore; \[x \in (-\infty,-3].\] Becoz inequality reverses itself when multiplied or divided by a negative number on both sides of inequality.
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oh yes.. i missed negative sign... !!
thanks, @maheshmeghwal9 ..
np:)
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