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(38-z)-3=-99
We move all terms to the left:
(38-z)-3-(-99)=0
We add all the numbers together, and all the variables
(-1z+38)-3-(-99)=0
We add all the numbers together, and all the variables
(-1z+38)+96=0
We get rid of parentheses
-1z+38+96=0
We add all the numbers together, and all the variables
-1z+134=0
We move all terms containing z to the left, all other terms to the right
-z=-134
z=-134/-1
z=+134
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