7x=30+5x

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Solution for 7x=30+5x equation: 



7x=30+5x

We move all terms to the left:

7x-(30+5x)=0

We add all the numbers together, and all the variables

7x-(5x+30)=0

We get rid of parentheses

7x-5x-30=0

We add all the numbers together, and all the variables

2x-30=0

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

2x=30

x=30/2

x=15

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