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5.1(x-3.9)=18.87
We move all terms to the left:
5.1(x-3.9)-(18.87)=0
We add all the numbers together, and all the variables
5.1(x-3.9)-18.87=0
We multiply parentheses
5.1x-19.89-18.87=0
We add all the numbers together, and all the variables
5.1x-38.76=0
We move all terms containing x to the left, all other terms to the right
5.1x=38.76
x=38.76/5.1
x=7+2.88679245283/4.81132075472
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