1/2(X+7)-1=8

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Solution for 1/2(X+7)-1=8 equation: 


X in (-oo:+oo)

(1/2)*(X+7)-1 = 8 // - 8

(1/2)*(X+7)-8-1 = 0

1/2*(X+7)-8-1 = 0

1/2*(X+7)-8-1 = 0

1/2*X-9/2-1 = 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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