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+23=T-11+T-8
We move all terms to the left:
+23-(T-11+T-8)=0
We add all the numbers together, and all the variables
-(2T-19)+23=0
We get rid of parentheses
-2T+19+23=0
We add all the numbers together, and all the variables
-2T+42=0
We move all terms containing T to the left, all other terms to the right
-2T=-42
T=-42/-2
T=+21
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