x/2+(x-1)/2=9/10

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Solution for x/2+(x-1)/2=9/10 equation: 


x in (-oo:+oo)

(x-1)/2+x/2 = 9/10 // - 9/10

(x-1)/2+x/2-(9/10) = 0

(x-1)/2+x/2-9/10 = 0

(10*(x-1))/(2*10)+(10*x)/(2*10)+(-9*2)/(2*10) = 0

10*(x-1)+10*x-9*2 = 0

20*x-18-10 = 0

20*x-28 = 0

(20*x-28)/(2*10) = 0

(20*x-28)/(2*10) = 0 // * 2*10

20*x-28 = 0

20*x-28 = 0 // + 28

20*x = 28 // : 20

x = 28/20

x = 7/5

x = 7/5

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