4j+20=9j-20

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Solution for 4j+20=9j-20 equation: 



4j+20=9j-20

We move all terms to the left:

4j+20-(9j-20)=0

We get rid of parentheses

4j-9j+20+20=0

We add all the numbers together, and all the variables

-5j+40=0

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

-5j=-40

j=-40/-5

j=+8

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