Question

2x-y(parax=5 e y=-4)
$2 \times - y(parax = 5 \: e \: y = - 4)$
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Answer 1

Resposta:

$2x - y = 2.5 - ( - 4) = 10 + 4 = 14$

Answer 2

x = 5
y = - 4

2x - y = 2.5 - (-4) = 10+4= 14

R.: 14