Answer:
z = 83/(6-c-t)
Explanation:
-cz +6z = tz +83
Subtract tz from each side
-cz +6z -tz = 83
Factor out z
z(6-c-t) = 83
Divide by (6-c-t)
z(6-c-t) /(6-c-t) = 83/(6-c-t)
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