3/10x+2/5=-1/2

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Solution for 3/10x+2/5=-1/2 equation: 


x in (-oo:+oo)

(3/10)*x+2/5 = -1/2 // + -1/2

(3/10)*x+2/5-(-1/2) = 0

(3/10)*x+2/5+1/2 = 0

3/10*x+9/10 = 0 // - 9/10

3/10*x = -9/10 // : 3/10

x = -9/10/3/10

x = -3

x = -3

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