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Mihaelabcc
a fost răspuns

rezolvati ecuatiile : 2,5 × - 1,3 = 1,2 ×+1,3

Răspuns :

CosmoteRo
2,5x- 1,3=1,2x+1,3
2,5x-1,2x=1,3+1,3
1,3x=2,6
x=2
2,5x-1,3=1,2x+1,3=
=2,5x-1,2=1,3+1,3=
=1,3x=2,6=
=x=2,6:1,3=
=x=2


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