👤
a fost răspuns

rezolva ecuatiile. 100.{10.[(45x -35):5+12} .2-21} +17 =25917

Răspuns :

Renatemambouko
100×{10×[(45x -35):5+12]×2-21} +17 =25917
100×[10×(9x -7+12)×2-21]  =25917-17
100×[10×(9x +5)×2-21}  =25900
10×(9x +5)×2-21  =259
10×(9x +5)×2  =259+21
10×(9x +5)×2   =280
9x +5 =14
9x  =9
x=1

Alte intrebari