-q+9=-9+q

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Solution for -q+9=-9+q equation: 



-q+9=-9+q

We move all terms to the left:

-q+9-(-9+q)=0

We add all the numbers together, and all the variables

-q-(q-9)+9=0

We add all the numbers together, and all the variables

-1q-(q-9)+9=0

We get rid of parentheses

-1q-q+9+9=0

We add all the numbers together, and all the variables

-2q+18=0

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

-2q=-18

q=-18/-2

q=+9

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