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0=5.6+8.5t-4.90^2
We move all terms to the left:
0-(5.6+8.5t-4.90^2)=0
We add all the numbers together, and all the variables
-(5.6+8.5t-4.90^2)=0
We get rid of parentheses
-8.5t-5.6+4.90^2=0
We add all the numbers together, and all the variables
-8.5t+18.41=0
We move all terms containing t to the left, all other terms to the right
-8.5t=-18.41
t=-18.41/-8.5
t=2+1/6.0283687943262
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