Resolver 2x + y = 12; 7x - 2y = 31 | 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

$$\begin{cases}2x+y=12\\ 7x-2y=31\end{cases}$$