7=a/-2-3 - solution

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Solution for 7=a/-2-3 equation:

a in (-oo:+oo)

7 = a/(-2)-3 // - a/(-2)-3

3-(a/(-2))+7 = 0

1/2*a+10 = 0 // - 10

1/2*a = -10 // : 1/2

a = -10/1/2

a = -20

a = -20

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