x+49=5x+21

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Solution for x+49=5x+21 equation: 



x+49=5x+21

We move all terms to the left:

x+49-(5x+21)=0

We get rid of parentheses

x-5x-21+49=0

We add all the numbers together, and all the variables

-4x+28=0

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

-4x=-28

x=-28/-4

x=+7

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