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-9t+8(2t+2)=-1
We move all terms to the left:
-9t+8(2t+2)-(-1)=0
We add all the numbers together, and all the variables
-9t+8(2t+2)+1=0
We multiply parentheses
-9t+16t+16+1=0
We add all the numbers together, and all the variables
7t+17=0
We move all terms containing t to the left, all other terms to the right
7t=-17
t=-17/7
t=-2+3/7
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