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3=-t/2
We move all terms to the left:
3-(-t/2)=0
We get rid of parentheses
t/2+3=0
We multiply all the terms by the denominator
t+3*2=0
We add all the numbers together, and all the variables
t+6=0
We move all terms containing t to the left, all other terms to the right
t=-6
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