3.5x=15+x

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Solution for 3.5x=15+x equation: 



3.5x=15+x

We move all terms to the left:

3.5x-(15+x)=0

We add all the numbers together, and all the variables

3.5x-(x+15)=0

We get rid of parentheses

3.5x-x-15=0

We add all the numbers together, and all the variables

2.5x-15=0

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

2.5x=15

x=15/2.5

x=6

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