(z+30)+z=90

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Solution for (z+30)+z=90 equation:



(z+30)+z=90
We move all terms to the left:
(z+30)+z-(90)=0
We add all the numbers together, and all the variables
z+(z+30)-90=0
We get rid of parentheses
z+z+30-90=0
We add all the numbers together, and all the variables
2z-60=0
We move all terms containing z to the left, all other terms to the right
2z=60
z=60/2
z=30

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