Resposta da conta: 2x-3y=0 4x+3y=3.... Pergunta de ideia deDad

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April 2020 2 71 Report

Resposta da conta: 2x-3y=0
4x+3y=3

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sousacosta 2x+3y=0(-1)
4x+3y=3

-2x-3y=0
4x+3y=3

2x=3
x=3/2

2x+3y=0
2.3/2+3y=0
3+3y=0
3y=3
y=1

11 votes Thanks 25

ArthurPDC $\begin{cases}2x-3y=0\\4x+3y=3\end{cases}\\
-------\\
6x+0y=3\\\\\Longrightarrow6x=3\Longrightarrow x=\dfrac{3}{6}\Longrightarrow \boxed{x=\dfrac{1}{2}}\\\\\\
2x-3y=0\Longrightarrow2\cdot\dfrac{1}{2}-3y=0\Longrightarrow1-3y=0\Longrightarrow3y=1\\
\boxed{y=\dfrac{1}{3}}$

7 votes Thanks 15

ArthurPDC E agora?