September 2018 1 29 Report
Resolver estas 4 ecuaciones 50 puntos
1) 2(×-1)+3(2×+5=2(3×-4)+1
2) 5(Y-4)-2(1-3y)-3=(4(y+1)-1
3) 3(×+4)-5(2×+9)=-3(1-×)
4) -5(2m-3)+4(m-7)-2(3m+1)=4(1-m)+5

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