Question

Caneta:x
Caderno:y

$\left \{ {{2x+y=17} \atop {4x+3y=61}} \right.$

Answer 1

X= - 5

Y= 27.

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Answer 2

4x+3y=61

2x+y=17

y=17-2x

4x+3.(17-2x)=61

4x+51-6x=61

-2x=61-51

-2x= 10

x=10

-2

x=-5

2.(-5)+y=17

-10+y=17

y= 17+10

y=27