-7x-21=25-9x

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Solution for -7x-21=25-9x equation: 



-7x-21=25-9x

We move all terms to the left:

-7x-21-(25-9x)=0

We add all the numbers together, and all the variables

-7x-(-9x+25)-21=0

We get rid of parentheses

-7x+9x-25-21=0

We add all the numbers together, and all the variables

2x-46=0

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

2x=46

x=46/2

x=23

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