Question

Pesaren os sistemasi x+y=13 5x-2y = 10
$2x + y = 13 \\ 5x - 2y = 10$
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Answer 1

Dslcp se tiver errado ainda tô aprendendo :(

2x + y = 13

5x - 2y = 10

• 2x + y = 13 .

y = 13 - 2x

• 5x - 2y = 10

5x - 2 (13-2x) = 10

5x - 26 + 4x = 10 5x + 4x = 10 + 26

9x = 36

x = 36/9

x = 4

• 2x + y = 13

2.4 + y = 13

8 + y = 13

y = 13-8 y = 5