1/2x-x=7(x+2)

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Solution for 1/2x-x=7(x+2) equation: 


x in (-oo:+oo)

(1/2)*x-x = 7*(x+2) // - 7*(x+2)

(1/2)*x-(7*(x+2))-x = 0

(1/2)*x-7*(x+2)-x = 0

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

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

x-7*2*(x+2)+2*(-x) = 0

-13*x-2*x-28 = 0

-15*x-28 = 0

(-15*x-28)/2 = 0

(-15*x-28)/2 = 0 // * 2

-15*x-28 = 0

-15*x-28 = 0 // + 28

-15*x = 28 // : -15

x = 28/(-15)

x = -28/15

x = -28/15

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