-q=-3q-4

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Solution for -q=-3q-4 equation: 



-q=-3q-4

We move all terms to the left:

-q-(-3q-4)=0

We add all the numbers together, and all the variables

-1q-(-3q-4)=0

We get rid of parentheses

-1q+3q+4=0

We add all the numbers together, and all the variables

2q+4=0

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

2q=-4

q=-4/2

q=-2

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