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Mariusstefan28
a fost răspuns

2 supra 7 ori x - 1 supra 5 = 2 supra 3 ori x - 1 supra 2

2 Supra 7 Ori X 1 Supra 5 2 Supra 3 Ori X 1 Supra 2 class=

Răspuns :

3)2/7x-7)2/3x=-5)1/2+2)1/5
6/21x-14/21x=-5/10+2/10
-8/21x=-3/10. /ori(-1)
8/21x=3/10
x=3/10÷8/21
x=3/10 × 21/8
x=63/80

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