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8t+15=-20+5t
We move all terms to the left:
8t+15-(-20+5t)=0
We add all the numbers together, and all the variables
8t-(5t-20)+15=0
We get rid of parentheses
8t-5t+20+15=0
We add all the numbers together, and all the variables
3t+35=0
We move all terms containing t to the left, all other terms to the right
3t=-35
t=-35/3
t=-11+2/3
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