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

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Solution for -2=-2(q+-4)+-2 equation: 



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

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We use the square of the difference formula

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



We calculate terms in parentheses: -(-2(q-4)-2), so:

-2(q-4)-2

We multiply parentheses

-2q+8-2

We add all the numbers together, and all the variables

-2q+6

Back to the equation:

-(-2q+6)



We get rid of parentheses

2q-6-2=0

We add all the numbers together, and all the variables

2q-8=0

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

2q=8

q=8/2

q=4

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