Question

1) 5x + 7y = 50 9x + 14y = 97 2) 12x - 13y = 9 - 4x + 17y = 35 3) 8x - 5y = 49 7x + 15y = 101 4) 10x + 3y = 23 -2x + 5y = 1
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Answer 1

Respuesta:

Explicación paso a paso

x= 50 - 7y/5

9(50 - 7y)/5 +14y=97

y=5

x=3

2)

12x=9−4x+17y^35 +13y

12x+4x=9+17y^35 +13y

16x=9+17y^35 +13y

x= 9 + 17y^35 + 13y/16