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100t+50(4t)+5(4t+20)=6.500
We move all terms to the left:
100t+50(4t)+5(4t+20)-(6.500)=0
We add all the numbers together, and all the variables
100t+504t+5(4t+20)-(6.5)=0
We add all the numbers together, and all the variables
604t+5(4t+20)-6.5=0
We multiply parentheses
604t+20t+100-6.5=0
We add all the numbers together, and all the variables
624t+93.5=0
We move all terms containing t to the left, all other terms to the right
624t=-93.5
t=-93.5/624
t=-26.7142857143/178.285714286
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