1/2x+9=-6 - solution

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Solution for 1/2x+9=-6 equation:

x in (-oo:+oo)

(1/2)*x+9 = -6 // + 6

(1/2)*x+6+9 = 0

1/2*x+15 = 0 // - 15

1/2*x = -15 // : 1/2

x = -15/1/2

x = -30

x = -30

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