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Stiind ca x-2*y+13=52 , detereminati 3*x-6*y+1

Răspuns :

Miky93
x-2y=52-13

x-2y=39

3x-6y+1= 3(x-2y)+1= 3*39+1= 117+1=118
Mariyus95mc
x-2*y+13=52
x-2y=39
x=39+2y
3x-6y+1=3(39+2y)-6y+1=117+6y-6y+1=118

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