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-4(x-7)=-4x+12
We move all terms to the left:
-4(x-7)-(-4x+12)=0
We multiply parentheses
-4x-(-4x+12)+28=0
We get rid of parentheses
-4x+4x-12+28=0
We add all the numbers together, and all the variables
16!=0
There is no solution for this equation
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