(1/2)(x+20)=4

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Solution for (1/2)(x+20)=4 equation: 


x in (-oo:+oo)

(1/2)*(x+20) = 4 // - 4

(1/2)*(x+20)-4 = 0

1/2*(x+20)-4 = 0

1/2*(x+20)-4 = 0

1/2*x+6 = 0

1/2*x+6 = 0

1/2*x+6 = 0 // - 6

1/2*x = -6 // : 1/2

x = -6/1/2

x = -12

x = -12

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