4-q=-2q

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Solution for 4-q=-2q equation: 



4-q=-2q

We move all terms to the left:

4-q-(-2q)=0

We add all the numbers together, and all the variables

-1q-(-2q)+4=0

We get rid of parentheses

-1q+2q+4=0

We add all the numbers together, and all the variables

q+4=0

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

q=-4

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