4x=30+7x

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Solution for 4x=30+7x equation: 



4x=30+7x

We move all terms to the left:

4x-(30+7x)=0

We add all the numbers together, and all the variables

4x-(7x+30)=0

We get rid of parentheses

4x-7x-30=0

We add all the numbers together, and all the variables

-3x-30=0

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

-3x=30

x=30/-3

x=-10

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