7x=3x-15-7x

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



7x=3x-15-7x

We move all terms to the left:

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

We add all the numbers together, and all the variables

7x-(-4x-15)=0

We get rid of parentheses

7x+4x+15=0

We add all the numbers together, and all the variables

11x+15=0

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

11x=-15

x=-15/11

x=-1+4/11

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