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-5x+2x+9=2(6x+3)
We move all terms to the left:
-5x+2x+9-(2(6x+3))=0
We add all the numbers together, and all the variables
-3x-(2(6x+3))+9=0
We calculate terms in parentheses: -(2(6x+3)), so:We get rid of parentheses
2(6x+3)
We multiply parentheses
12x+6
Back to the equation:
-(12x+6)
-3x-12x-6+9=0
We add all the numbers together, and all the variables
-15x+3=0
We move all terms containing x to the left, all other terms to the right
-15x=-3
x=-3/-15
x=1/5
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