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a fost răspuns

-5×+2=-4×+1 .
5×+17=3×-31
3×-9+×=2×-27
8×-5×+32=2×-51
5×+13-2×=9×+22-5×
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Răspuns :

Slavitescudora
-5x+4x=1-2
-x= -1
x=1

5x-3x= -31-17
2x= -48
x= -24

4x-2x= -27+9
2x= -18
x= -9

3x-2x= -51-32
x= -83

3x-4x=22-13
-x= -9
x=9

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