7x+21=42x+14

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Solution for 7x+21=42x+14 equation: 



7x+21=42x+14

We move all terms to the left:

7x+21-(42x+14)=0

We get rid of parentheses

7x-42x-14+21=0

We add all the numbers together, and all the variables

-35x+7=0

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

-35x=-7

x=-7/-35

x=1/5

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