2/5(x+4)=1/5(3x+9)

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Solution for 2/5(x+4)=1/5(3x+9) equation: 


x in (-oo:+oo)

(2/5)*(x+4) = (1/5)*(3*x+9) // - (1/5)*(3*x+9)

(2/5)*(x+4)-((1/5)*(3*x+9)) = 0

(2/5)*(x+4)+(-1/5)*(3*x+9) = 0

2/5*(x+4)-1/5*(3*x+9) = 0

2/5*(x+4)-1/5*(3*x+9) = 0

-1/5*x-1/5 = 0

-1/5*x-1/5 = 0

-1/5*x-1/5 = 0 // + 1/5

-1/5*x = 1/5 // : -1/5

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

x = -1

x = -1

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