40=7j+2j

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Solution for 40=7j+2j equation: 



40=7j+2j

We move all terms to the left:

40-(7j+2j)=0

We add all the numbers together, and all the variables

-(+9j)+40=0

We get rid of parentheses

-9j+40=0

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

-9j=-40

j=-40/-9

j=4+4/9

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