7x+2x=x-3

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Solution for 7x+2x=x-3 equation: 



7x+2x=x-3

We move all terms to the left:

7x+2x-(x-3)=0

We add all the numbers together, and all the variables

9x-(x-3)=0

We get rid of parentheses

9x-x+3=0

We add all the numbers together, and all the variables

8x+3=0

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

8x=-3

x=-3/8

x=-3/8

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