7x+21=4x+1

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Solution for 7x+21=4x+1 equation: 



7x+21=4x+1

We move all terms to the left:

7x+21-(4x+1)=0

We get rid of parentheses

7x-4x-1+21=0

We add all the numbers together, and all the variables

3x+20=0

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

3x=-20

x=-20/3

x=-6+2/3

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