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4z/10+9=-2
We move all terms to the left:
4z/10+9-(-2)=0
We add all the numbers together, and all the variables
4z/10+11=0
We multiply all the terms by the denominator
4z+11*10=0
We add all the numbers together, and all the variables
4z+110=0
We move all terms containing z to the left, all other terms to the right
4z=-110
z=-110/4
z=-27+1/2
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