2j+2j=12

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Solution for 2j+2j=12 equation: 



2j+2j=12

We move all terms to the left:

2j+2j-(12)=0

We add all the numbers together, and all the variables

4j-12=0

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

4j=12

j=12/4

j=3

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