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84=19z/12
We move all terms to the left:
84-(19z/12)=0
We add all the numbers together, and all the variables
-(+19z/12)+84=0
We get rid of parentheses
-19z/12+84=0
We multiply all the terms by the denominator
-19z+84*12=0
We add all the numbers together, and all the variables
-19z+1008=0
We move all terms containing z to the left, all other terms to the right
-19z=-1008
z=-1008/-19
z=53+1/19
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