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3z/10-3=-5
We move all terms to the left:
3z/10-3-(-5)=0
We add all the numbers together, and all the variables
3z/10+2=0
We multiply all the terms by the denominator
3z+2*10=0
We add all the numbers together, and all the variables
3z+20=0
We move all terms containing z to the left, all other terms to the right
3z=-20
z=-20/3
z=-6+2/3
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