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105=5(-6x-9)
We move all terms to the left:
105-(5(-6x-9))=0
We calculate terms in parentheses: -(5(-6x-9)), so:We get rid of parentheses
5(-6x-9)
We multiply parentheses
-30x-45
Back to the equation:
-(-30x-45)
30x+45+105=0
We add all the numbers together, and all the variables
30x+150=0
We move all terms containing x to the left, all other terms to the right
30x=-150
x=-150/30
x=-5
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