Question

porfa
(1)
a) 4x + 4y = 21
-4x + 8y= -8

B) 2x - 4y = -2
3x + 4y = 17

(2)
a)2x + y = 12
Y = 2 x +4

B) x + y = 14
Y =x + 8​

Answer 1

Explicación paso a paso:

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