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0.4(x-7)=0.6x-2.8
We move all terms to the left:
0.4(x-7)-(0.6x-2.8)=0
We multiply parentheses
0.4x-(0.6x-2.8)-2.8=0
We get rid of parentheses
0.4x-0.6x+2.8-2.8=0
We add all the numbers together, and all the variables
-0.2x=0
x=0/-0.2
x=0
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