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-29z-0.7=-39z+1.4
We move all terms to the left:
-29z-0.7-(-39z+1.4)=0
We get rid of parentheses
-29z+39z-1.4-0.7=0
We add all the numbers together, and all the variables
10z-2.1=0
We move all terms containing z to the left, all other terms to the right
10z=2.1
z=2.1/10
z=1/4.7619047619048
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