Solve for t
t=2
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20t-20-10t=0
Subtract 10t from both sides.
10t-20=0
Combine 20t and -10t to get 10t.
10t=20
Add 20 to both sides. Anything plus zero gives itself.
t=\frac{20}{10}
Divide both sides by 10.
t=2
Divide 20 by 10 to get 2.
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