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2(7t+1)+2(5t+8)=40.5
We move all terms to the left:
2(7t+1)+2(5t+8)-(40.5)=0
We add all the numbers together, and all the variables
2(7t+1)+2(5t+8)-40.5=0
We multiply parentheses
14t+10t+2+16-40.5=0
We add all the numbers together, and all the variables
24t-22.5=0
We move all terms containing t to the left, all other terms to the right
24t=22.5
t=22.5/24
t=9/9.6
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