7x-43=21-9x

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Solution for 7x-43=21-9x equation: 



7x-43=21-9x

We move all terms to the left:

7x-43-(21-9x)=0

We add all the numbers together, and all the variables

7x-(-9x+21)-43=0

We get rid of parentheses

7x+9x-21-43=0

We add all the numbers together, and all the variables

16x-64=0

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

16x=64

x=64/16

x=4

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