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0.07(4t+7)=0.28(t-1)+0.77
We move all terms to the left:
0.07(4t+7)-(0.28(t-1)+0.77)=0
We multiply parentheses
0.28t-(0.28(t-1)+0.77)+0.49=0
We calculate terms in parentheses: -(0.28(t-1)+0.77), so:We get rid of parentheses
0.28(t-1)+0.77
We multiply parentheses
0.28t-0.28+0.77
We add all the numbers together, and all the variables
0.28t+0.49
Back to the equation:
-(0.28t+0.49)
0.28t-0.28t-0.49+0.49=0
We add all the numbers together, and all the variables
=0
t=0/1
t=0
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