Question

What is the solution set of -9x ≥ 27?

Answer 1

-9x ≥ 27

can u isolate x ??

Answer 2

i mean, keep x on one side and rest all on other.. can u do that ??

Answer 3

x ≥ 27 / (-9)

So x ≥ -3.... is the solution...

Answer 4

not getting ??

Answer 5

\[-9x \ge 27.\]\[\implies -x \ge \frac{27}{9}.\]\[\implies -x \ge 3.\]\[\implies x \le -3.\]Therefore; \[x \in (-\infty,-3].\]
Becoz inequality reverses itself when multiplied or divided by a negative number on both sides of inequality.

Answer 6

oh yes.. i missed negative sign... !!

Answer 7

thanks, @maheshmeghwal9 ..

Answer 8

np:)