15j+j-9j=7

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Solution for 15j+j-9j=7 equation: 



15j+j-9j=7

We move all terms to the left:

15j+j-9j-(7)=0

We add all the numbers together, and all the variables

7j-7=0

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

7j=7

j=7/7

j=1

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