7x-3x=x+15

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Solution for 7x-3x=x+15 equation: 



7x-3x=x+15

We move all terms to the left:

7x-3x-(x+15)=0

We add all the numbers together, and all the variables

4x-(x+15)=0

We get rid of parentheses

4x-x-15=0

We add all the numbers together, and all the variables

3x-15=0

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

3x=15

x=15/3

x=5

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