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0=4.9^2-19t-2.5
We move all terms to the left:
0-(4.9^2-19t-2.5)=0
We add all the numbers together, and all the variables
-(4.9^2-19t-2.5)=0
We get rid of parentheses
19t+2.5-4.9^2=0
We add all the numbers together, and all the variables
19t-21.51=0
We move all terms containing t to the left, all other terms to the right
19t=21.51
t=21.51/19
t=1+2.51/19
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