7(x+4)-20=15x-21-8x

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Solution for 7(x+4)-20=15x-21-8x equation: 



7(x+4)-20=15x-21-8x

We move all terms to the left:

7(x+4)-20-(15x-21-8x)=0

We add all the numbers together, and all the variables

7(x+4)-(7x-21)-20=0

We multiply parentheses

7x-(7x-21)+28-20=0

We get rid of parentheses

7x-7x+21+28-20=0

We add all the numbers together, and all the variables

29!=0

There is no solution for this equation

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