3+7x=122

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Solution for 3+7x=122 equation: 



3+7x=122

We move all terms to the left:

3+7x-(122)=0

We add all the numbers together, and all the variables

7x-119=0

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

7x=119

x=119/7

x=17

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