Resolver x + y = 1; 3x + y = - 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

$$\begin{cases}x+y=1\\ 3x+y=-3\end{cases}$$