September 2018 1 23 Report
Resuelve por método de igualació:
A)5x + 5y =- 20
- 4x + 2y = 16

B) - 4x + 6y = 6
- 4x + 2y =- 14

C) 10X -5y = -20
- 4x + 5y=32

AYUDA ES SUPER URGENTE POR FAVOOR QUIEN SABE HACERLOS???

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