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-28-2=2q-3(q+9)
We move all terms to the left:
-28-2-(2q-3(q+9))=0
We add all the numbers together, and all the variables
-(2q-3(q+9))-30=0
We calculate terms in parentheses: -(2q-3(q+9)), so:We get rid of parentheses
2q-3(q+9)
We multiply parentheses
2q-3q-27
We add all the numbers together, and all the variables
-1q-27
Back to the equation:
-(-1q-27)
1q+27-30=0
We add all the numbers together, and all the variables
q-3=0
We move all terms containing q to the left, all other terms to the right
q=3
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