x+9=-x+10

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Solution for x+9=-x+10 equation: 


x in (-oo:+oo)

x+9 = 10-x // - 10-x

x+x-10+9 = 0

2*x-1 = 0 // + 1

2*x = 1 // : 2

x = 1/2

x = 1/2

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