1=(x-9)/2

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Solution for 1=(x-9)/2 equation: 


x in (-oo:+oo)

1 <= (x-9)/2 // - (x-9)/2

1-((x-9)/2) <= 0

(-1*(x-9))/2+1 <= 0

(-1*(x-9))/2+(1*2)/2 <= 0

1*2-1*(x-9) <= 0

11-x <= 0

(11-x)/2 <= 0

(11-x)/2 <= 0 // * 2^2

2*(11-x) <= 0

( 11-x )

11-x <= 0

-x <= -11 // * -1

x >= 11

( 2 )

2 <= 0

x belongs to the empty set

	(-oo:11)	(11:+oo)
11-x	+	-
2	+	+


x in <11:+oo)

<11:+oo)

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