Question

-20=0.2(t). Find t.

Answer 1

So here is your solution....
0.2*t = -20
=> t = -20/0.2
=> t = -200/2
=> t = -100
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Answer 2

Hii...

=> -20 = 2t / 10

=> -20 × 10 = 2t

=> -200 = 2t

=> t = - 200/2

=> t = -100

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hope this helps !