-15-q=-20-2q

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Solution for -15-q=-20-2q equation: 



-15-q=-20-2q

We move all terms to the left:

-15-q-(-20-2q)=0

We add all the numbers together, and all the variables

-q-(-2q-20)-15=0

We add all the numbers together, and all the variables

-1q-(-2q-20)-15=0

We get rid of parentheses

-1q+2q+20-15=0

We add all the numbers together, and all the variables

q+5=0

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

q=-5

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