-2r(6-2r)/5

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Solution for -2r(6-2r)/5 equation: 


r in (-oo:+oo)

-2*r < (6-(2*r))/5 // - (6-(2*r))/5

-((6-(2*r))/5)-2*r < 0

-((6-2*r)/5)-2*r < 0

(-1*(6-2*r))/5-2*r < 0

(-1*(6-2*r))/5+(-2*5*r)/5 < 0

-1*(6-2*r)-2*5*r < 0

-8*r-6 < 0

(-8*r-6)/5 < 0

(-8*r-6)/5 < 0 // * 5^2

5*(-8*r-6) < 0

( -8*r-6 )

-8*r-6 < 0 // + 6

-8*r < 6 // : -8

r > 6/(-8)

r > -3/4

( 5 )

5 < 0

r belongs to the empty set

	(-oo:-3/4)	(-3/4:+oo)
-8*r-6	+	-
5	+	+


r in (-3/4:+oo)

(-3/4:+oo)

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