3(j+15)=90

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Solution for 3(j+15)=90 equation: 



3(j+15)=90

We move all terms to the left:

3(j+15)-(90)=0

We multiply parentheses

3j+45-90=0

We add all the numbers together, and all the variables

3j-45=0

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

3j=45

j=45/3

j=15

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