3z+z=12+20

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Solution for 3z+z=12+20 equation:



3z+z=12+20
We move all terms to the left:
3z+z-(12+20)=0
We add all the numbers together, and all the variables
3z+z-32=0
We add all the numbers together, and all the variables
4z-32=0
We move all terms containing z to the left, all other terms to the right
4z=32
z=32/4
z=8

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