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(7.5)(x)=(5)(x+0.81)
We move all terms to the left:
(7.5)(x)-((5)(x+0.81))=0
We multiply parentheses
7.5x-(5(x+0.81))=0
We calculate terms in parentheses: -(5(x+0.81)), so:We get rid of parentheses
5(x+0.81)
We multiply parentheses
5x+4.05
Back to the equation:
-(5x+4.05)
7.5x-5x-4.05=0
We add all the numbers together, and all the variables
2.5x-4.05=0
We move all terms containing x to the left, all other terms to the right
2.5x=4.05
x=4.05/2.5
x=1+1/1.6129032258065
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