4=q+9

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Solution for 4=q+9 equation: 



4=q+9

We move all terms to the left:

4-(q+9)=0

We get rid of parentheses

-q-9+4=0

We add all the numbers together, and all the variables

-1q-5=0

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

-q=5

q=5/-1

q=-5

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