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Ajutatima dau coroana!
Resolvati ecuatia.
0,2(x+3intreg2\5)=1,2


Răspuns :

x+3 intregi 2/5=1.2 :0.2=6
x+17/5=6 => x+3.4=6 => x=2.6

3 intreg2/5=(3×5+2)/5=17/5
0,2=2/10
1,2=12/10
2/10 (X+17/5)=12/10
X+17/5=6
înmulțim ecuatia cu 5
5X+(17×5)/5= 6×5
5X+17=30
5X=13
X=13/5