7+z=13+4z

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Solution for 7+z=13+4z equation: 



7+z=13+4z

We move all terms to the left:

7+z-(13+4z)=0

We add all the numbers together, and all the variables

z-(4z+13)+7=0

We get rid of parentheses

z-4z-13+7=0

We add all the numbers together, and all the variables

-3z-6=0

We move all terms containing z to the left, all other terms to the right

-3z=6

z=6/-3

z=-2

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