7x-15+2x=7+9x-21

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Solution for 7x-15+2x=7+9x-21 equation: 



7x-15+2x=7+9x-21

We move all terms to the left:

7x-15+2x-(7+9x-21)=0

We add all the numbers together, and all the variables

7x+2x-(9x-14)-15=0

We add all the numbers together, and all the variables

9x-(9x-14)-15=0

We get rid of parentheses

9x-9x+14-15=0

We add all the numbers together, and all the variables

-1!=0

There is no solution for this equation

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