December 2023 1 5 Report
M Resuelve los sistemas por sustitución 1)
1. x-y=1
x+y=7

2.2x+y=8
3x-y=7

3.10x+18y=11
16x-9y=-5

4.x+y=9
x-y=1

5.2x+y=8
3x-y=7

6.x-5y=8
-7x+8y=25

ayuuuuuuuudaaaaa si me ayudáis OS doy coronita


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