1/2x+3(x-1)=-1

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Solution for 1/2x+3(x-1)=-1 equation: 


x in (-oo:+oo)

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

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

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

(2*3*(x-1))/2+x/2+(1*2)/2 = 0

2*3*(x-1)+x+1*2 = 0

7*x-6+2 = 0

7*x-4 = 0

(7*x-4)/2 = 0

(7*x-4)/2 = 0 // * 2

7*x-4 = 0

7*x-4 = 0 // + 4

7*x = 4 // : 7

x = 4/7

x = 4/7

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