2.5-39=a/-2 - solution

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Solution for 2.5-39=a/-2 equation:

a in (-oo:+oo)

2.5-39 = a/(-2) // - a/(-2)

2.5-(a/(-2))-39 = 0

1/2*a-36.5 = 0 // + 36.5

1/2*a = 36.5 // : 1/2

a = 36.5/1/2

a = 73

a = 73

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