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(7x-(3x-5))=(6x-9)
We move all terms to the left:
(7x-(3x-5))-((6x-9))=0
We calculate terms in parentheses: +(7x-(3x-5)), so:
7x-(3x-5)
We get rid of parentheses
7x-3x+5
We add all the numbers together, and all the variables
4x+5
Back to the equation:
+(4x+5)
We calculate terms in parentheses: -((6x-9)), so:We get rid of parentheses
(6x-9)
We get rid of parentheses
6x-9
Back to the equation:
-(6x-9)
4x-6x+5+9=0
We add all the numbers together, and all the variables
-2x+14=0
We move all terms containing x to the left, all other terms to the right
-2x=-14
x=-14/-2
x=+7
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