1/2x+2/5(x-2)=-1

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Solution for 1/2x+2/5(x-2)=-1 equation: 


x in (-oo:+oo)

(2/5)*(x-2)+(1/2)*x = -1 // + 1

(2/5)*(x-2)+(1/2)*x+1 = 0

2/5*(x-2)+x/2+1 = 0

(2/5*2*(x-2))/2+x/2+(1*2)/2 = 0

2/5*2*(x-2)+x+1*2 = 0

9/5*x-8/5+2 = 0

9/5*x+2/5 = 0

(9/5*x+2/5)/2 = 0

(9/5*x+2/5)/2 = 0 // * 2

9/5*x+2/5 = 0

9/5*x+2/5 = 0 // - 2/5

9/5*x = -2/5 // : 9/5

x = -2/5/9/5

x = -2/9

x = -2/9

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