2+a/-3=-1 - solution

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

a in (-oo:+oo)

a/(-3)+2 = -1 // + 1

a/(-3)+1+2 = 0

3-1/3*a = 0 // - 3

-1/3*a = -3 // : -1/3

a = -3/(-1/3)

a = 9

a = 9

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