Question

Which of the following is not a way to represent the solution of the inequality 7 - 9x - (x + 12) <= 25?

Answer 1

the following?

Answer 2

x >= -3

x <= -3

-3 <= x

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

Answer 3

second one

Answer 4

7-9x-x-12<=25
-10x<=25+5
-10x<=30
x>=-3

Don't forget when a division or multiplication by a negative you reverse the sense of the equality sign (direction)

Answer 5

That is why it is the first one. It should be noted that the first one and the third one express the same thing. x is equal to or larger than -3 !!