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13z+7+7=14+13z
We move all terms to the left:
13z+7+7-(14+13z)=0
We add all the numbers together, and all the variables
13z-(13z+14)+7+7=0
We add all the numbers together, and all the variables
13z-(13z+14)+14=0
We get rid of parentheses
13z-13z-14+14=0
We add all the numbers together, and all the variables
=0
z=0/1
z=0
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