Question

−t=9(t−10)
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Answer 1

-t=9(t-10) = -t=9t-90
-t/-1 = 9t-90/ -1 = t = -9t+ 90
t + (-9t) = -9t + 90 (-9t) = 10t = 90
10t/ 10 = 90/10 = t= 9