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28.8=t+5.1
We move all terms to the left:
28.8-(t+5.1)=0
We get rid of parentheses
-t-5.1+28.8=0
We add all the numbers together, and all the variables
-1t+23.7=0
We move all terms containing t to the left, all other terms to the right
-t=-23.7
t=-23.7/-1
t=23+0.7/1
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