20x+7=x+121

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Solution for 20x+7=x+121 equation: 



20x+7=x+121

We move all terms to the left:

20x+7-(x+121)=0

We get rid of parentheses

20x-x-121+7=0

We add all the numbers together, and all the variables

19x-114=0

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

19x=114

x=114/19

x=6

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