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8.7x=5.7
We move all terms to the left:
8.7x-(5.7)=0
We add all the numbers together, and all the variables
8.7x-5.7=0
We move all terms containing x to the left, all other terms to the right
8.7x=5.7
x=5.7/8.7
x=3.3529411764706/5.1176470588235
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