Question

Resolva o sistema de equação

5x + 3y = 2



4x - 2y = 6


Se puderem colocar a forma como resolveram fico agradecido

vlw ^^

Answer 1

$\begin{cases}5x+3y=2\\4x-2y=6\end{cases}$

$+\underline{\begin{cases}10x+6y=4\\12x-6y=18\end{cases}}$

$22x=22\\x=\dfrac{22}{22}=1$

$5.1+3y=2\\5+3y=2\\3y=2-5\\3y=-3$

$y=-\dfrac{3}{3}=-1$

$\mathsf{s=\{1,-1\}}$