6x-12=-21

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Solution for 6x-12=-21 equation: 



6x-12=-21

We move all terms to the left:

6x-12-(-21)=0

We add all the numbers together, and all the variables

6x+9=0

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

6x=-9

x=-9/6

x=-1+1/2

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