Question

encontre o valor de "X" e "Y"

A ) 2 x+ Y= 6
X - Y = 0

B ) 3 × +2 Y= 11
2 × + 2 Y= 8

Answer 1

2 x+ Y= 6 ==> 2x + x = 6 ==> 3x = 6 ==> x = 2
X - Y = 0 ==> x = y ==> y = 2
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B ) 3 × +2 Y= 11
     2 × + 2 Y= 8(-1)



 3× +2 Y= 11
-2× - 2 Y= -8
    x = 3

3x + 2y = 11==> 2y= 11-3x==> 2y=11-3.3==> 2y = 2 ==> y = 1