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16.4=t/2.2+12
We move all terms to the left:
16.4-(t/2.2+12)=0
We get rid of parentheses
-t/2.2-12+16.4=0
We multiply all the terms by the denominator
-t-12*2.2+(16.4)*2.2=0
We add all the numbers together, and all the variables
-1t+9.68=0
We move all terms containing t to the left, all other terms to the right
-t=-9.68
t=-9.68/-1
t=9+0.68/1
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