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-2.5t=-19
We move all terms to the left:
-2.5t-(-19)=0
We add all the numbers together, and all the variables
-2.5t+19=0
We move all terms containing t to the left, all other terms to the right
-2.5t=-19
t=-19/-2.5
t=7+1/1.6666666666667
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