3x+12=-9x-48

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Solution for 3x+12=-9x-48 equation: 



3x+12=-9x-48

We move all terms to the left:

3x+12-(-9x-48)=0

We get rid of parentheses

3x+9x+48+12=0

We add all the numbers together, and all the variables

12x+60=0

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

12x=-60

x=-60/12

x=-5

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