(1/2)x-9=-7 - solution

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Solution for (1/2)x-9=-7 equation:

x in (-oo:+oo)

(1/2)*x-9 = -7 // + 7

(1/2)*x-9+7 = 0

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

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

x = 2/1/2

x = 4

x = 4

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