9j-7=7j+13

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Solution for 9j-7=7j+13 equation: 



9j-7=7j+13

We move all terms to the left:

9j-7-(7j+13)=0

We get rid of parentheses

9j-7j-13-7=0

We add all the numbers together, and all the variables

2j-20=0

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

2j=20

j=20/2

j=10

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