1/2a-3=4 - solution

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Solution for 1/2a-3=4 equation:

a in (-oo:+oo)

(1/2)*a-3 = 4 // - 4

(1/2)*a-4-3 = 0

1/2*a-7 = 0 // + 7

1/2*a = 7 // : 1/2

a = 7/1/2

a = 14

a = 14

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