Question

Resolva o sistema:
x+2y=3
3x+y=4


V=

Answer 1

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x + 2y = 3
3x + y = 4

x + 2y = 3
6x + 2y = 8

6x - x + 2y - 2y = 8 - 3
5x = 5
x = 1

1 + 2y = 3
2y = 3 - 1 = 2
y = 1

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