Question

Qual o resultado do sistema 3x-2y=1 e 6x-4x=7​

Answer 1

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$\begin{cases}\sf3x-2y=1\\\sf6x-4x=7\end{cases}\\\sf 2x=7\implies x=\dfrac{7}{2}\\\sf3\cdot\dfrac{7}{2}-2y=1\cdot(2)\\\sf21-4y=2\\\sf 4y=21-2\\\sf 4y=19\\\huge\boxed{\boxed{\boxed{\boxed{\sf y=\dfrac{19}{4}}}}}$