2(j-7)=30

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Solution for 2(j-7)=30 equation: 



2(j-7)=30

We move all terms to the left:

2(j-7)-(30)=0

We multiply parentheses

2j-14-30=0

We add all the numbers together, and all the variables

2j-44=0

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

2j=44

j=44/2

j=22

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