Question

resolva os sistemas

3x + y =5
6y -2x = 10

Answer 1

$\left \{ {{3x+y=5} \atop {6y-2x=10}} \right.$
$\left \{ {{-18x-6y=-30} \atop {6y-2x=10}} \right.$
$-20x=-20$
$x= \frac{-20}{-20}$
$x=1$
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6y-2.1=10
6y-2=10
y=12/6
y=2
Espero ter ajudado.