4x+21=7x-17

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Solution for 4x+21=7x-17 equation: 



4x+21=7x-17

We move all terms to the left:

4x+21-(7x-17)=0

We get rid of parentheses

4x-7x+17+21=0

We add all the numbers together, and all the variables

-3x+38=0

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

-3x=-38

x=-38/-3

x=12+2/3

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