2a-9=-11

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Solution for 2a-9=-11 equation: 


a in (-oo:+oo)

2*a-9 = -11 // + 11

2*a-9+11 = 0

2*a+2 = 0 // - 2

2*a = -2 // : 2

a = -2/2

a = -1

a = -1

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