7x=-4x+21

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Solution for 7x=-4x+21 equation: 



7x=-4x+21

We move all terms to the left:

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

We get rid of parentheses

7x+4x-21=0

We add all the numbers together, and all the variables

11x-21=0

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

11x=21

x=21/11

x=1+10/11

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