9/10+b+2b=-81/10

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Solution for 9/10+b+2b=-81/10 equation: 


b in (-oo:+oo)

b+2*b+9/10 = -81/10 // + -81/10

b+2*b+9/10-(-81/10) = 0

b+2*b+9/10+81/10 = 0

3*b+9 = 0 // - 9

3*b = -9 // : 3

b = -9/3

b = -3

b = -3

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