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88.9-t=221.
We move all terms to the left:
88.9-t-(221.)=0
We add all the numbers together, and all the variables
-t+88.9-221=0
We add all the numbers together, and all the variables
-1t-132.1=0
We move all terms containing t to the left, all other terms to the right
-t=132.1
t=132.1/-1
t=-132+0.099999999999994/1
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