6x+9(-1)=-21

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Solution for 6x+9(-1)=-21 equation: 



6x+9(-1)=-21

We move all terms to the left:

6x+9(-1)-(-21)=0

We add all the numbers together, and all the variables

6x+12=0

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

6x=-12

x=-12/6

x=-2

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