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1.3t-2.5=-5.1
We move all terms to the left:
1.3t-2.5-(-5.1)=0
We add all the numbers together, and all the variables
1.3t+2.6=0
We move all terms containing t to the left, all other terms to the right
1.3t=-2.6
t=-2.6/1.3
t=-2
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