Which of the following is not a way to represent the solution of the inequality 7 - 9x - (x + 12) less than or greater to 25?

x greater than or equal to -3

x less than or greater to -3

-3 less than or greater to x

A number line with a closed circle on negative 3 and shading to the right.

@Preetha @Luis_Rivera @hba @waterineyes

Question

Which of the following is not a way to represent the solution of the inequality 7 - 9x - (x + 12) less than or greater to 25?

x greater than or equal to -3

x less than or greater to -3

-3 less than or greater to x

A number line with a closed circle on negative 3 and shading to the right. 

@Preetha @Luis_Rivera @hba @waterineyes

anonymous · Answer

@jim_thompson5910

jim_thompson5910 · Answer

are you sure that the inequality sign is "less than or greater to"

anonymous · Answer

Check the statement of your question once again..

anonymous · Answer

@waterineyes @jim_thompson5910 it's a typo. It's supposed to be 'less than or equal to'. Sorry.

jim_thompson5910 · Answer

that's ok, thanks for clearing it up

jim_thompson5910 · Answer

7 - 9x - (x + 12) <= 25

7 - 9x - x - 12 <= 25

-10x - 5 <= 25

-10x <= 25 + 5

-10x <= 30

I'll let you finish

anonymous · Answer

Just open up the brackets on left and solve it futher:

$$7 - 9x - x - 12 \le 25 \implies -10x - 5 \le 25 \implies -10x \le 30$$

anonymous · Answer

Here: when multiplying by "-",  you will have to take extra care..

anonymous · Answer

Like this? http://www.sketchtoy.com/29325555

jim_thompson5910 · Answer

good, the sign will flip because you're dividing both sides by a negative number

anonymous · Answer

Thanks guys!