7x=3x+512

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Solution for 7x=3x+512 equation: 



7x=3x+512

We move all terms to the left:

7x-(3x+512)=0

We get rid of parentheses

7x-3x-512=0

We add all the numbers together, and all the variables

4x-512=0

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

4x=512

x=512/4

x=128

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