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0.1t+25(30-t)=3*0.15
We move all terms to the left:
0.1t+25(30-t)-(3*0.15)=0
We add all the numbers together, and all the variables
0.1t+25(-1t+30)-(0.45)=0
We add all the numbers together, and all the variables
0.1t+25(-1t+30)-0.45=0
We multiply parentheses
0.1t-25t+750-0.45=0
We add all the numbers together, and all the variables
-24.9t+749.55=0
We move all terms containing t to the left, all other terms to the right
-24.9t=-749.55
t=-749.55/-24.9
t=30+1/9.76470588235
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