Er dette rett???? 1/3x – (x+1/2) – 3x/5 + x/2 * (-5) >3x/

[onkelskrue]

1/3x – (x+1/2) – 3x/5 + x/2 * (-5) >3x/2

x/3-x/1-1/2-3x/5-5x/2+3x/2>0

x/3-x/1-3x/5-5x/2+3x/2>1/2

(10x-30x-18x-75+45) /(30) >1/2

-68x/30 >1/2

x<-15/68

[onkelskrue]

Dette er kanskje litte mere riktig???


1/3x – (x+1/2) – 3x/5 + x/2 * (-5) >3x/2

x/3-x/1-1/2-3x/5-5x/2+3x/2>0

x/3-x/1-3x/5-5x/2+3x/2>1/2

(10x-30x-18x-75x-45x) /(30) >1/2

-158x/30 >1/2

-158x>15

x<-15/158

[kimla]

Dette er kanskje litte mere riktig???


1/3x – (x+1/2) – 3x/5 + x/2 * (-5) >3x/2

x/3-x/1-1/2-3x/5-5x/2+3x/2>0

x/3-x/1-3x/5-5x/2+3x/2>1/2

(10x-30x-18x-75x-45x) /(30) >1/2

-158x/30 >1/2

-158x>15

x<-15/158

Her bommer du vel når du flytter over 3x/2, du glemmer å bytte fortegn?