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x+(4-7x)=7-(-13+2x)
We move all terms to the left:
x+(4-7x)-(7-(-13+2x))=0
We add all the numbers together, and all the variables
x+(-7x+4)-(7-(2x-13))=0
We get rid of parentheses
x-7x-(7-(2x-13))+4=0
We calculate terms in parentheses: -(7-(2x-13)), so:We add all the numbers together, and all the variables
7-(2x-13)
determiningTheFunctionDomain -(2x-13)+7
We get rid of parentheses
-2x+13+7
We add all the numbers together, and all the variables
-2x+20
Back to the equation:
-(-2x+20)
-6x-(-2x+20)+4=0
We get rid of parentheses
-6x+2x-20+4=0
We add all the numbers together, and all the variables
-4x-16=0
We move all terms containing x to the left, all other terms to the right
-4x=16
x=16/-4
x=-4
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