December 2023 2 5 Report
Metodo de adicion y sustraccion
A. 8x+7y=68
-x+6y=19
B.a+b=-2
-3a-5b=2
C.15x+11y=7
7y-9x=8
D.3x+5y=7
2x-y=-4
E.7x-4y=5
9x+8y=13
F.2x-3y=-6
3x+3y=21




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