Mathematics, 24.03.2020 06:00 andrewpjryan871

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Resolver las siguientes ecuaciones por el sistema de ecuaciones del método SUSTITUCIÓN:

A) 2x-3y=-6

x + y = 7

B) 8x+5y=-28

3x+2y=-11

Resolver las siguientes ecuaciones por el sistema de ecuaciones del método SUMA Y RESTA:

A) 5x+6y=20

4x-3y=-23

Answers: 2

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