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-t/2=-1
We move all terms to the left:
-t/2-(-1)=0
We add all the numbers together, and all the variables
-t/2+1=0
We multiply all the terms by the denominator
-t+1*2=0
We add all the numbers together, and all the variables
-1t+2=0
We move all terms containing t to the left, all other terms to the right
-t=-2
t=-2/-1
t=+2
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