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28-2z+22-2(28-2z)+28-2z=22
We move all terms to the left:
28-2z+22-2(28-2z)+28-2z-(22)=0
We add all the numbers together, and all the variables
-2z-2(-2z+28)-2z+28+22+28-22=0
We add all the numbers together, and all the variables
-4z-2(-2z+28)+56=0
We multiply parentheses
-4z+4z-56+56=0
We add all the numbers together, and all the variables
=0
z=0/1
z=0
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