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30/t=2.1
We move all terms to the left:
30/t-(2.1)=0
Domain of the equation: t!=0We add all the numbers together, and all the variables
t∈R
30/t-2.1=0
We multiply all the terms by the denominator
-(2.1)*t+30=0
We multiply parentheses
-2.1t+30=0
We move all terms containing t to the left, all other terms to the right
-2.1t=-30
t=-30/-2.1
t=14+0.6/2.1
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