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4=-2(q-2)
We move all terms to the left:
4-(-2(q-2))=0
We calculate terms in parentheses: -(-2(q-2)), so:We get rid of parentheses
-2(q-2)
We multiply parentheses
-2q+4
Back to the equation:
-(-2q+4)
2q-4+4=0
We add all the numbers together, and all the variables
2q=0
q=0/2
q=0
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