हल करना (a+3)/((a)^(2)+4a+3)+(3)/(a+1)-(2a)/(a+3) | Equatix - Math Solver

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Example

3(r+2s)=2t-4

a⋅(b-2)=3b

3(r+2s)=2t-4

a⋅(b-2)=3b

Question

$$\frac{ a+3 }{ { a }^{ 2 } +4a+3 } + \frac{ 3 }{ a+1 } - \frac{ 2a }{ a+3 }$$