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20.3=t-(3.9)
We move all terms to the left:
20.3-(t-(3.9))=0
We calculate terms in parentheses: -(t-(3.9)), so:We get rid of parentheses
t-(3.9)
We add all the numbers together, and all the variables
t-3.9
Back to the equation:
-(t-3.9)
-t+3.9+20.3=0
We add all the numbers together, and all the variables
-1t+24.2=0
We move all terms containing t to the left, all other terms to the right
-t=-24.2
t=-24.2/-1
t=24+0.2/1
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