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0.5t+.9(40-t)=22.4
We move all terms to the left:
0.5t+.9(40-t)-(22.4)=0
We add all the numbers together, and all the variables
0.5t+.9(-1t+40)-(22.4)=0
We add all the numbers together, and all the variables
0.5t+.9(-1t+40)-22.4=0
We multiply parentheses
0.5t-0.9t+36-22.4=0
We add all the numbers together, and all the variables
-0.4t+13.6=0
We move all terms containing t to the left, all other terms to the right
-0.4t=-13.6
t=-13.6/-0.4
t=34+-1.7763568394E-15/0.4
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