7x+2x=2x-1

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Solution for 7x+2x=2x-1 equation: 



7x+2x=2x-1

We move all terms to the left:

7x+2x-(2x-1)=0

We add all the numbers together, and all the variables

9x-(2x-1)=0

We get rid of parentheses

9x-2x+1=0

We add all the numbers together, and all the variables

7x+1=0

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

7x=-1

x=-1/7

x=-1/7

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