-4=-2/5x

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Solution for -4=-2/5x equation: 


x in (-oo:+oo)

-4 = (-2/5)*x // - (-2/5)*x

-((-2/5)*x)-4 = 0

(2/5)*x-4 = 0

2/5*x-4 = 0 // + 4

2/5*x = 4 // : 2/5

x = 4/2/5

x = 10

x = 10

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