1/2(x+9)=10

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Solution for 1/2(x+9)=10 equation: 


x in (-oo:+oo)

(1/2)*(x+9) = 10 // - 10

(1/2)*(x+9)-10 = 0

1/2*(x+9)-10 = 0

1/2*(x+9)-10 = 0

1/2*x-11/2 = 0

1/2*x-11/2 = 0

1/2*x-11/2 = 0 // + 11/2

1/2*x = 11/2 // : 1/2

x = 11/2/1/2

x = 11

x = 11

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