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8.7=2.3-2t
We move all terms to the left:
8.7-(2.3-2t)=0
We add all the numbers together, and all the variables
-(-2t+2.3)+8.7=0
We get rid of parentheses
2t-2.3+8.7=0
We add all the numbers together, and all the variables
2t+6.4=0
We move all terms containing t to the left, all other terms to the right
2t=-6.4
t=-6.4/2
t=-3+0.4/2
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