Question

x-y=2
4x+3y= 5
resolva os sistema metodo de adicao​

Answer 1

$\left \{ {{x-y=2} \atop {4x+3y=5}} \right.$

$\left \{ {{3x-3y=6} \atop {4x+3y=5}} \right.$

$(4x+3y)+(3x-3y)=5+6$

$4x+3y+3x-3y=11$

$7x=11$

$x=\frac{11}{7}$

$x-y=2$

$\frac{11}{7}-y=2$

$-y=-\frac{11}{7}+2$

$y=\frac{11}{7}-2$

$y=\frac{11}{7}-\frac{14}{7}$

$y=-\frac{3}{7}$