7*x=30+x

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Solution for 7*x=30+x equation: 



7x=30+x

We move all terms to the left:

7x-(30+x)=0

We add all the numbers together, and all the variables

7x-(x+30)=0

We get rid of parentheses

7x-x-30=0

We add all the numbers together, and all the variables

6x-30=0

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

6x=30

x=30/6

x=5

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