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3+(2x-1)=2x-(7x+9)
We move all terms to the left:
3+(2x-1)-(2x-(7x+9))=0
We get rid of parentheses
2x-(2x-(7x+9))-1+3=0
We calculate terms in parentheses: -(2x-(7x+9)), so:We add all the numbers together, and all the variables
2x-(7x+9)
We get rid of parentheses
2x-7x-9
We add all the numbers together, and all the variables
-5x-9
Back to the equation:
-(-5x-9)
2x-(-5x-9)+2=0
We get rid of parentheses
2x+5x+9+2=0
We add all the numbers together, and all the variables
7x+11=0
We move all terms containing x to the left, all other terms to the right
7x=-11
x=-11/7
x=-1+4/7
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