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StefySefania
a fost răspuns

2/x - 2/15 = 8/15 .Cum se calculeaza ??

Răspuns :

Rodi11
2/x - 2/15 = 8/15

2/x=8/15 + 2/15

2/x=10/15

x=2/1 : 10/15

x=2/1 ×15/10

x=1×15 totul supra /1×5

x=15/5 (simplificat cu 5)

x=3/1

x=3
2/x-2/15=8/15
30/15x-2x/15x=8x/15x |×15x
30-2x=8x
8x+2x=30
10x=30
x=30:10
x=3

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