mmaglaya1
04.11.2020 •
Mathematics
−t=9(t−10)
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Ответ:
-t/-1 = 9t-90/ -1 = t = -9t+ 90
t + (-9t) = -9t + 90 (-9t) = 10t = 90
10t/ 10 = 90/10 = t= 9
Ответ: