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.4x-3(x-2)=2.8x+6.4
We move all terms to the left:
.4x-3(x-2)-(2.8x+6.4)=0
We multiply parentheses
.4x-3x-(2.8x+6.4)+6=0
We get rid of parentheses
.4x-3x-2.8x-6.4+6=0
We add all the numbers together, and all the variables
-5.4x-0.4=0
We move all terms containing x to the left, all other terms to the right
-5.4x=0.4
x=0.4/-5.4
x=-0.4/5.4
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