Question

5x-4y=12 2x-4y=6
$5x - 4y = 12 \\ 2x - 4y = 6$
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Answer 1

Resposta:

5x - 4y = 12

-2x + 4y = -6

__________

3x = 6

x = 6/3

x = 2

achando y

2x - 4y = 6

2x - 6 = 4y

4-6 = 4y

y = -2/4

y = -1/2

Explicação passo-a-passo: