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6.4(x-2.75)=-12.8
We move all terms to the left:
6.4(x-2.75)-(-12.8)=0
We add all the numbers together, and all the variables
6.4(x-2.75)+12.8=0
We multiply parentheses
6.4x-17.6+12.8=0
We add all the numbers together, and all the variables
6.4x-4.8=0
We move all terms containing x to the left, all other terms to the right
6.4x=4.8
x=4.8/6.4
x=1.7142857142857/2.2857142857143
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